Quick answer: UC Berkeley researchers estimate the average U.S. household causes about 48 tons of carbon dioxide a year, with roughly one-third from transportation, a little over 20% from home energy and about 15% from food.

Key numbers at a glance

• About 48 tons of CO2 per year: the average U.S. household footprint (UC Berkeley).
• 17.3 tons CO2e per person: the U.S. per-capita carbon footprint in 2023, more than twice the global average of 6.6 tons (University of Michigan Center for Sustainable Systems).
• 8,887 grams of CO2: what burning one gallon of gasoline releases (EPA).
• 4.6 metric tons of CO2 per year: a typical U.S. passenger car (EPA).
• 0.0053 metric tons (5.3 kg) of CO2: one therm of natural gas (EPA).
• 428.5 vs. 767.2 pounds of CO2 per megawatt-hour: California’s main power grid compared with the U.S. average in EPA’s eGRID2023 data (EPA eGRID).
• 10,791 kWh: the electricity an average U.S. home bought in 2022 (EIA).

Want to skip the math? Our free Household Carbon Simulator does every step below for you. Keep reading to learn what it is doing behind the scenes.

What is a carbon footprint?

Carbon dioxide (CO2) is not the only gas that traps heat. Methane and nitrous oxide do too, and some trap far more heat per pound. To add them all up, scientists convert each gas into the amount of CO2 that would cause the same warming. The result is called CO2e, short for carbon dioxide equivalent. A footprint is usually measured in metric tons of CO2e per year.

You will see two kinds of numbers. Some count only the CO2 released inside a country’s borders. Our World in Data reports U.S. CO2 emissions of 14.2 tonnes per person in 2024 this way. Other numbers count everything you consume, including goods made overseas and other gases. That is why the University of Michigan figure of 17.3 tons CO2e is a bit higher. Neither is wrong. They measure slightly different things.

The four parts of a household footprint

Businesses sort emissions into “scopes.” For a family, it is easier to think about four buckets.

1. Home energy

This is the electricity you use and any fuel you burn at home, such as natural gas for a furnace, water heater, stove or dryer. EPA estimates that home energy use creates about 7.45 metric tons of CO2 per home per year across the U.S.

2. Transportation

Driving and flying. For most U.S. households this is the single biggest bucket, about one-third of the total in the Berkeley study. One typical car alone adds about 4.6 tons a year.

3. Food

Growing, processing, shipping and cooking food. The University of Michigan factsheet says food makes up 10–30% of a typical household’s footprint, and that about 68% of food emissions come from production on the farm, not from shipping. What you eat usually matters more than how far it traveled.

4. Goods and services

Clothes, electronics, furniture, phone plans, haircuts and everything else you buy. Each item had a footprint before it reached you. This bucket is the hardest to measure, so calculators estimate it from spending.

Why California footprints are often lower

The same light bulb can cause very different pollution depending on where you plug it in. Power grids that rely on coal and gas emit more per kilowatt-hour than grids with lots of solar, wind, hydro and nuclear.

In EPA’s eGRID2023 summary tables, the CAMX region, which covers most of California, emitted 428.5 pounds of CO2 per megawatt-hour. The U.S. average was 767.2 pounds. That means each kilowatt-hour on California’s main grid caused about 44% less CO2 than the national average. Mild weather helps too, since many California homes need less heating and cooling.

California is not automatically low, though. Long commutes and frequent flights can push a household well above average. The Berkeley researchers found that a San Francisco couple’s biggest sources were cars and air travel, while a St. Louis family’s were electricity and food.

How to calculate your household carbon footprint by hand

You can make a solid estimate of your home and car emissions with three bills and a calculator. Here is how.

1. Find your electricity use. Add up the kilowatt-hours (kWh) on your last 12 electric bills. If you only have one bill, multiply by 12, but know that summer and winter can differ a lot.
2. Find your gas use. Add up the therms on 12 months of gas bills. Skip this step if your home is all-electric.
3. Find your gasoline use. Divide the miles each car drives per year by its miles per gallon. A car driven 10,000 miles at 25 mpg uses 400 gallons.
4. Multiply electricity by your grid’s factor. Divide your kWh by 1,000 to get megawatt-hours, then multiply by your region’s pounds of CO2 per MWh from eGRID. Divide by 2,205 to convert pounds to metric tons.
5. Multiply therms by 0.0053. That gives metric tons of CO2 from natural gas.
6. Multiply gallons by 0.00889. That gives metric tons of CO2 from gasoline (8.89 kg per gallon).
7. Add them up. This is the core of your footprint. Food, flights and shopping come on top.

A worked example

Picture a California household that uses 6,000 kWh of electricity, 300 therms of natural gas and 400 gallons of gasoline a year.

• Electricity: 6 MWh × 428.5 lb = 2,571 lb, or about 1.17 metric tons of CO2.
• Natural gas: 300 therms × 0.0053 = about 1.59 metric tons.
• Gasoline: 400 gallons × 0.00889 = about 3.56 metric tons.
• Total: about 6.3 metric tons of CO2 from home energy and driving.

If the same home were on a grid at the U.S. average of 767.2 pounds per MWh, its electricity alone would be about 2.09 tons instead of 1.17. Notice that the car is the biggest piece here, which matches the national pattern.

These factors count CO2 only. Full CO2e numbers, including methane leaks and refinery emissions, are somewhat higher, so treat your hand estimate as a floor.

The biggest levers, ranked

Based on where emissions come from, here is roughly where most families get the biggest cuts. Your own order may differ, which is exactly why calculating helps.

1. How you get around. Driving less, carpooling, taking transit, biking, choosing an efficient car or going electric, and taking fewer flights. Transportation is about one-third of the average footprint.
2. How you heat and power your home. Sealing drafts, adding insulation, switching to a heat pump or heat pump water heater, and getting cleaner electricity through rooftop solar or your utility’s green power option.
3. What you eat. Eating less beef and lamb and wasting less food. The University of Michigan factsheet notes that high-consuming households can have about 8 times the food emissions of low-consuming ones.
4. What you buy. Buying fewer new things, choosing used or repaired items, and making products last longer.
5. Small daily habits. Turning off lights, washing in cold water and unplugging chargers. These are worth doing, but they usually move the total less than the first four.

What about carbon offsets?

A carbon offset is a credit you buy that is supposed to remove or prevent one ton of CO2 somewhere else, for example by protecting a forest. Offsets can fund good projects, but they have real limits.

Researchers at UC Berkeley’s Carbon Trading Project studied forestry offsets that made up about 11% of all offsets ever issued. Lead researcher Barbara Haya found the crediting methods “fall far short from good practice in carbon accounting.” In plain words, some credits claim more benefit than they deliver.

A good rule: cut your own emissions first, and treat offsets as a last step for what you truly cannot avoid. If you buy them, look for projects with clear, independent verification.

How to use the Household Carbon Simulator

The Household Carbon Simulator turns the steps above into sliders.

1. Pick your region. Santa Monica, California is the default. The region picker swaps in your local grid’s emission factor from EPA eGRID.
2. Enter your household. Set household size, electricity and gas use, miles driven, flights and diet.
3. Try changes. Add rooftop solar, a heat pump, an electric car or fewer meat meals, and watch the footprint chart update.
4. Compare plans. The “What you changed” panel shows your new footprint next to where you started.

Teachers can use it in class for free with no sign-up. It is a learning and planning tool, not an official audit.

Frequently asked questions

What is the average carbon footprint of a U.S. household?

UC Berkeley’s CoolClimate research puts the average U.S. household at about 48 tons of CO2 per year. Per person, the University of Michigan reports about 17.3 tons of CO2e in 2023. Your number depends on household size, climate, travel and diet.

What is the difference between CO2 and CO2e?

CO2 is carbon dioxide alone. CO2e, or carbon dioxide equivalent, also counts gases like methane and nitrous oxide by converting them into the amount of CO2 that would cause the same warming. Footprint calculators usually report CO2e.

How much CO2 does a gallon of gas produce?

Burning one gallon of gasoline releases about 8,887 grams of CO2, or roughly 19.6 pounds, according to EPA. A typical passenger car emits about 4.6 metric tons of CO2 a year.

Why does my location change my carbon footprint?

Electricity is cleaner in some regions than others. In EPA’s eGRID2023 data, California’s main grid emitted 428.5 pounds of CO2 per megawatt-hour versus a U.S. average of 767.2. Local climate also changes how much heating and cooling you need.

Do carbon offsets cancel out my footprint?

Not reliably. Studies of popular forestry offsets found many claim more carbon benefit than they deliver. Cutting your own emissions first is the surest way to shrink your footprint.

Calculate your household carbon footprint now

Ready to find your own number? Open the free Household Carbon Simulator, pick your region and plug in your bills. In a few minutes you will see which bucket is biggest for your family and which changes would cut it most.

Related guides

• Individuals Matter! Small Collective Actions Drive Meaningful Outcomes
• How to Cook Faster and Waste Less Heat with an Induction Cooktop
• How to Set Your Water Heater to 120°F Safely
• How to Mow Your Lawn Gas-Free with a Push Reel Mower

Sources

• UC Berkeley, When it comes to carbon footprints, location and lifestyle matter
• University of Michigan Center for Sustainable Systems, Carbon Footprint Factsheet
• U.S. EPA, Greenhouse Gas Emissions from a Typical Passenger Vehicle
• U.S. EPA, Greenhouse Gas Equivalencies Calculator: Calculations and References
• U.S. EPA, eGRID2023 Summary Tables
• U.S. Energy Information Administration, How much electricity does an American home use?
• Our World in Data, United States: CO2 Country Profile
• CITRIS and the Banatao Institute, Carbon offset gatekeepers over-credit projects, says CITRIS’s Haya

Written and reviewed by the Accessible Sustainability Alliance editorial team. Last updated October 5, 2026.

The post Household Carbon Footprint: What It Is and How to Calculate It appeared first on Accessible Sustainability Alliance.

Quick answer: California’s small off-road engine rules phase out the sale of most new gas-powered yard equipment, with full enforcement starting with the 2026 model year and zero smog-forming emission standards by model year 2028, but you can keep using and repairing the gas equipment you already own.

What the state rules do

In 2021, California passed AB 1346. It told the California Air Resources Board (CARB) to adopt rules that prohibit exhaust and evaporative emissions from new small off-road engines starting January 1, 2024, or as soon as CARB found it feasible, whichever came later (CARB). In December 2021, CARB approved rules requiring most newly made small off-road engines, like those in leaf blowers and lawn mowers, to be zero-emission starting with model year 2024, with generators given until 2028 (CARB).

The timeline then shifted. Because California’s engine rules need federal approval, CARB had to wait for the U.S. EPA. According to CARB’s current FAQ, EPA authorized the rules on January 6, 2025, and because the 2025 model year was already underway, CARB deferred full implementation to the 2026 model year (CARB SORE FAQ).

Here is what that means today, based on CARB’s FAQ:

• Covered equipment: gas engines of 25 horsepower or less in tools such as leaf blowers, lawn mowers, riding mowers, string trimmers, edgers, hedge trimmers, chainsaws, pressure washers, log splitters and portable generators.
• Stores: may keep selling existing CARB-certified inventory. Some gas equipment has been certified for model years 2026 and 2027.
• Zero by 2028: by model year 2028, the standard for smog-forming emissions from new engines is set at zero. Manufacturers may use emission credits to certify engines through 2032.
• Your own equipment: California residents can keep using, servicing and repairing their gas equipment for its useful life.

Congress is reviewing the rule

CARB says EPA sent the small off-road engine authorization to Congress for review under the Congressional Review Act on June 12, 2026 (CARB SORE FAQ). Resolutions to overturn it were introduced in August 2026 in the House (H.J.Res. 214) and the Senate (S.J.Res. 205). As of early October 2026, both were still in committee. If a resolution passed both chambers and became law, it would cancel EPA’s authorization, which California needs to enforce these state rules on new engines. Check back before you shop.

Why California targets small engines

CARB says a commercial operator using one backpack leaf blower for one hour can create the same smog-forming emissions as a car driving 1,100 miles (CARB SORE FAQ).

Add up all the mowers, blowers and trimmers in the state, and the numbers get big. CARB reported in 2021 that smog-forming emissions from small off-road engines had already passed those from light-duty passenger cars in California and were projected to be nearly twice as high by 2031 (CARB). Gas blowers are also loud, and they kick dust and pollen into the air. To see where yard tools fit in your own footprint, try our free Household Carbon Simulator.

Local rules: Santa Monica and Los Angeles

Cities can set their own rules about using equipment, and some are stricter than the state.

• Santa Monica: Ordinance 2753, adopted August 22, 2023, says no one may operate a gas-powered leaf blower anywhere in the city at any time. Corded or cordless electric blowers are allowed only if the manufacturer’s sound rating is 70 decibels or less, and not before 8 a.m. or after 8 p.m. on weekdays, or before 9 a.m. or after 8 p.m. on weekends and major holidays. Repeat violators can face fines (Santa Monica Ordinance 2753).
• Los Angeles: the city has prohibited gas-powered blowers within 500 feet of a residence since 1998. In January 2024, a City Council motion asked city staff to study better enforcement, education and rebates for electric blowers (LA Council District 4).

Elsewhere, search your city’s municipal code for “leaf blower.”

Rebates for battery-electric yard tools

Programs open and close, so check the current status before you buy.

• South Coast AQMD residential rebate: residents in the district’s four-county area can get up to three rebates of 250 dollars each for cordless, battery-electric mowers, trimmers, leaf blowers and chainsaws when they scrap a working gas equivalent (South Coast AQMD).
• South Coast AQMD commercial exchange: commercial landscapers and gardeners, plus local governments, schools and nonprofits, can get discounts of up to 85% on zero-emission equipment, subject to funding caps, when they scrap working gas or diesel equipment (South Coast AQMD).
• State help for landscapers: CARB says the state set aside 30 million dollars in the 2021 budget through the Clean Off-Road Equipment Voucher Incentive Project to help sole proprietors and small landscaping businesses buy zero-emission equipment (CARB SORE FAQ).

Quieter ways to handle leaves

You may not need a blower at all.

• Rake and sweep. A push broom and a leaf rake clear most patios, driveways and small yards. See How to Rake Leaves with a Push Broom Instead of a Leaf Blower.
• Mulch them. Chop leaves with a mower and leave a thin layer on the lawn, or spread them on garden beds.
• Mow without gas. A push reel mower is quiet and needs no fuel or charging. See How to Mow Your Lawn Gas-Free with a Push Reel Mower.
• Go battery. If you need a blower, choose a battery-electric model and check its decibel rating, especially in Santa Monica.
• Shrink the lawn. Native plants and mulch need less mowing and blowing. See How to Landscape with Native Plants to Cut Water Use.

Frequently asked questions

Are gas leaf blowers illegal in California?

Using one is not illegal under state law. The state rules limit sales of new gas small engines, and CARB says you can keep using and repairing what you own. Some cities, like Santa Monica, ban using gas blowers, and Los Angeles bans them within 500 feet of a home.

Can I still buy a gas leaf blower in California?

Possibly, for now. CARB says stores may keep selling existing certified inventory, and some gas equipment has been certified for model years 2026 and 2027. By model year 2028, the emission standard for new engines is zero.

Are gas generators banned in California too?

Portable generators are covered by the same rules but were given more time. CARB’s 2021 rules called for tighter standards first and zero-emission standards for generators starting in 2028.

Can I get a rebate for an electric leaf blower?

In the South Coast AQMD area, residents can get up to three 250 dollar rebates for battery-electric yard tools when they scrap a working gas tool. Check with your own air district and city for other programs.

See your carbon impact

Yard tools are one piece of your household footprint. Try our free Household Carbon Simulator to see how home energy, driving, food and the things you buy add up, and which changes cut the most.

Related guides

• How to Rake Leaves with a Push Broom Instead of a Leaf Blower
• How to Mow Your Lawn Gas-Free with a Push Reel Mower
• How to Set Up a Countertop Compost Bin in a Small Apartment

Sources

• California Air Resources Board, AB 1346 (Berman) Small off-road engines
• California Air Resources Board, CARB approves updated regulations requiring most new small off-road engines be zero emission by 2024
• California Air Resources Board, Small Off-Road Engine Regulations FAQ
• U.S. Congress, H.J.Res. 214 and S.J.Res. 205
• City of Santa Monica, Ordinance 2753 on leaf blowers
• Los Angeles City Council District 4, Leaf blower enforcement motion
• South Coast AQMD, Electric lawn and garden programs

Written and reviewed by the Accessible Sustainability Alliance editorial team. Last updated October 5, 2026.

The post California Gas Leaf Blower Ban Explained: What Changed in 2026 appeared first on Accessible Sustainability Alliance.

Quick answer: Sweep hard surfaces with a push broom and rake the lawn into small piles; the California Air Resources Board says one hour of a commercial backpack gas leaf blower can make as much smog-forming pollution as driving a car about 1,100 miles.

Why it matters

Small gas engines, like the ones in leaf blowers and lawn mowers, are big polluters for their size. According to the California Air Resources Board (CARB), a commercial operator using one backpack leaf blower for one hour can create the same smog-forming emissions as a car driving 1,100 miles. A broom and rake make none.

Leaves also matter after you collect them. CalRecycle says organic waste like yard trimmings and food scraps makes up half of what Californians send to landfills, and organic waste in landfills is a source of methane, a strong climate pollutant. You can see how yard care fits into your household’s footprint with the Household Carbon Simulator.

What you need

• A push broom with stiff bristles for concrete and pavers
• A fan-shaped leaf rake for grass
• A tarp or old sheet to drag leaves
• Gloves to prevent blisters
• Your green organics bin, a compost pile or garden beds

How to rake leaves with a push broom

1. Start on hard surfaces. Sweep driveways, walkways and patios with the push broom, working from the edges toward the middle.
2. Use short, firm pushes. Keep the broom low and push leaves in one direction instead of flicking them into the air.
3. Switch to the leaf rake on the lawn. Pull leaves toward you in rows, working with the wind, not against it.
4. Make several small piles. Small piles are easier to move than one huge pile and are less likely to blow away.
5. Rake piles onto a tarp. Lay the tarp flat, rake the pile onto it, then drag the tarp to your green bin, compost pile or garden beds.
6. Finish with a quick sweep. Go back over hard surfaces to catch any leaves that blew back.
7. Repeat once a week during heavy leaf fall. Smaller, regular sweeps are easier than one big cleanup.

What to do with the leaves

• Put them in your green organics bin. Under California’s SB 1383 organic waste law, cities must offer organics collection to all residents and businesses.
• Use them as mulch. Spread a thin layer on garden beds to help hold in moisture.
• Add them to compost. Dry leaves are a good “brown” material to balance food scraps.
• Leave some in place. A few leaves under shrubs give shelter to insects and birds.

Do not sweep leaves into the street or storm drain. Storm drains often flow to creeks and the ocean without treatment.

Is California banning gas leaf blowers?

California’s rules focus on new equipment, not the blower you already own. Assembly Bill 1346 told CARB to set rules for new small off-road engines, such as those in leaf blowers, mowers and generators. CARB’s FAQ says U.S. EPA authorized the rules on January 6, 2025, CARB then began full implementation with the 2026 model year, and by model year 2028 the smog-forming emission standards for new engines are zero.

The same FAQ says the rules do not ban gas equipment, and you can keep using, repairing and maintaining CARB-certified gas equipment for its full useful life. In June 2026, U.S. EPA sent the authorization to Congress for review, so check CARB for the latest status. Some cities also set their own leaf blower limits. For the full timeline, read our California gas leaf blower ban explainer.

Tips

• Sweep when leaves are dry. Wet leaves stick to pavement and get heavy.
• Rake with the wind at your back so leaves move with you.
• Choose a broom with stiff bristles for rough concrete and softer bristles for smooth patios.
• If you still want a blower, look at a battery-electric model, which has no exhaust.

Frequently asked questions

Is a push broom faster than a leaf blower?

For a small driveway, patio or walkway, a push broom can do the job without much extra time. For large lawns, a rake and tarp work well if you clear leaves often. Time depends on your yard size and how many trees you have.

Can I still use my gas leaf blower in California?

CARB says its small engine rules do not ban gas equipment you already own, and you can keep using and repairing it. Your city may have its own limits on when or where gas blowers can be used, so check local rules.

Should I rake leaves or leave them on the lawn?

A thick layer of wet leaves can block sunlight and smother grass. A thin layer that you chop up with a mower can break down into the lawn. Rake heavy piles off and use them as mulch or compost.

What is the best broom for sweeping leaves?

A wide push broom with stiff bristles works best on concrete, asphalt and pavers. A fan-shaped leaf rake works better on grass because it slides over the lawn without tearing it.

Can leaves go in the green bin?

In most California cities, yes. Leaves and other yard trimmings go in the green organics bin. Check your city or hauler’s list to be sure.

See your impact

Every gas-free cleanup cuts pollution where you live. Try the Household Carbon Simulator to see how yard care, travel and energy use add up for your household, and find your next step.

Related guides

• California Gas Leaf Blower Ban Explained: What Changed in 2026
• How to Mow Your Lawn Gas-Free with a Push Reel Mower
• Household Carbon Footprint: What It Is and How to Calculate It

Sources

• California Air Resources Board, CARB approves updated regulations requiring most new small off-road engines be zero emission by 2024
• California Air Resources Board, Small Off-Road Engine Regulations Frequently Asked Questions
• California Air Resources Board, 2021 – Assembly Bill 1346 (Berman, Marc), Small Off-Road Engines (Chaptered)
• CalRecycle, California’s Short-Lived Climate Pollutant Reduction Strategy

Written and reviewed by the Accessible Sustainability Alliance editorial team. Last updated November 2, 2026.

The post How to Rake Leaves with a Push Broom Instead of a Leaf Blower appeared first on Accessible Sustainability Alliance.

Quick answer: To mow gas-free with a push reel mower, clear sticks and stones first, set the cutting height to about 2–3 inches, and push at a steady walking pace in straight rows that overlap by a few inches. Mow often, before the grass gets too tall, and wipe the blades clean after each use.

Why switching to a reel mower matters

Small gas engines pollute far more than most people expect. The California Air Resources Board says that running a commercial gas lawn mower for one hour emits as much smog-forming pollution as driving a new passenger car about 300 miles, roughly the trip from Los Angeles to Las Vegas (CARB). Home mowers are smaller, but they still burn gas and puff out fumes right where you breathe.

A reel mower runs on your own muscle power. There is no exhaust, no gas can to store in the garage and no engine noise to bother neighbors early in the morning. California has also set a goal of moving off-road equipment like this to zero emissions by 2035 where it is possible, so going gas-free now puts your household ahead of the curve.

What you need

• A push reel mower. Wider models (about 16–20 inches) cover ground faster; lighter ones are easier to push.
• Work gloves and closed-toe shoes.
• A stiff brush or old rag for cleaning the blades.
• A light lubricant or silicone spray to keep moving parts from rusting.
• Optional: a sharpening kit or a local shop that sharpens reel blades.

How to mow your lawn with a push reel mower

1. Walk the lawn first. Pick up sticks, pinecones, stones and toys. Reel blades are close together, so even a small twig can jam them, and a rock can nick the blade edge.
2. Check the grass height. Reel mowers work best on grass that is not too tall. If your grass is well over about 4 inches, mow it in two passes: first at the highest setting, then a few days later at your normal height.
3. Set the cutting height. Use the lever or knobs near the wheels. Many lawns do well at about 2–3 inches, but the right height depends on your grass type. Try not to cut off more than about one-third of the blade at a time.
4. Mow when the grass is dry. Wet grass bends over and clumps on the blades instead of getting a clean cut.
5. Push at a steady walking pace. The reel spins only when the wheels turn. Going too slowly can leave uncut blades, and going very fast can skip spots. A normal walk usually works best.
6. Overlap your rows. Mow in straight lines and let each pass overlap the last one by a few inches so you don’t leave a strip of tall grass between rows.
7. Change direction now and then. Mowing in a different pattern each time helps the grass stand up straight and keeps ruts from forming.
8. Clean up after mowing. Brush grass clippings off the reel and bed knife, wipe the blades dry and add a light coat of lubricant before storing the mower somewhere dry.

Tips for a better cut

• Mow more often. Reel mowers do their best work on a lawn that is cut about once a week in the growing season.
• Leave the clippings. Short clippings break down fast and return nutrients to the soil, so you can skip bagging.
• Keep blades sharp. If the mower starts chewing or folding grass instead of snipping it, adjust the reel so it lightly touches the bed knife, or have the blades sharpened.
• Watch your feet. The blades are not powered, but they are still sharp. Keep feet and hands away from the reel, and never pull the mower backward toward your toes.

Frequently asked questions

Are reel mowers good for big lawns?

Reel mowers are best for small to medium lawns. On a large yard they still work, but mowing takes longer and more effort. Many families with big lawns pair a reel mower with a battery-electric mower for the hardest jobs.

Can a reel mower cut tall or thick grass?

Not well. Tall grass tends to get pushed over instead of cut. If your lawn got away from you, mow it in two passes on different days, starting at the highest setting.

How often do reel mower blades need sharpening?

It depends on your lawn and how often you mow, but many owners sharpen once a season or every couple of years. Backlapping kits let you do it at home, or a local mower shop can do it for you.

See your household’s carbon impact

Want to see how lawn care, driving and home energy add up? Try our free Household Carbon Simulator to estimate your family’s carbon footprint and test which gas-free swaps make the biggest difference.

Related guides

• How to Rake Leaves with a Push Broom Instead of a Leaf Blower
• How to Landscape with Native Plants to Cut Water Use
• How to Join a Tool Library Instead of Buying Once-a-Year Tools

Sources

• California Air Resources Board, SORE – Small Engine Fact Sheet

Written and reviewed by the Accessible Sustainability Alliance editorial team. Last updated October 5, 2026.

The post How to Mow Your Lawn Gas-Free with a Push Reel Mower appeared first on Accessible Sustainability Alliance.

Quick answer: Zero VOC paint has fewer than 5 grams of VOCs per liter, much less than many traditional paints. Today’s zero VOC lines often cost about the same and hold up about as well, while making your indoor air cleaner during and after painting.

What are VOCs, and why do they matter indoors?

VOCs (volatile organic compounds) are chemicals that turn into gas at room temperature. In paint, they help the liquid spread and dry. As the paint dries, the VOCs float into the air you breathe.

Indoor air already tends to hold more of these chemicals than outdoor air. The U.S. EPA reports that levels of several organic chemicals average 2 to 5 times higher indoors than outdoors, and that paints, varnishes and wax all contain organic solvents (EPA). VOCs can cause headaches and irritate the eyes, nose and throat. Outdoors, they also help form smog, which is one reason California air districts limit how much VOC paint can contain.

What “zero VOC” actually means

Labels can be confusing, so here is the short version:

• Zero VOC paint has fewer than 5 grams of VOCs per liter. “Zero” does not mean none at all.
• Low VOC paint has fewer than 50 grams per liter under the California standard used in many green building guides.
• Traditional paint, especially oil-based paint, can be much higher.

These definitions come from Green Seal and the StopWaste paint guide listed in our sources. One catch: the number on the can usually does not include the tint added at the store. Green Seal notes that colorants can add a lot of VOCs to the final paint (Green Seal). If you want a deep or bright color, ask for a zero VOC colorant.

Cost: closer than you might think

Zero VOC paint used to cost a lot more than regular paint. That gap has shrunk. Bigger demand, more brands and stricter VOC rules in states like California pushed paint makers to make cleaner formulas their standard products. Many store brands now offer a zero VOC interior line in the same price range as their regular paint, while premium lines cost more either way.

Durability and ease of use

Early zero VOC paints had a reputation for weak coverage and scuffing. Newer formulas have largely caught up. A few things to keep in mind:

• Coverage: Most good zero VOC paints go on smooth and even. Use a primer on bare drywall or when making a big color change.
• Drying time: Some dry faster than traditional paint, so work in small sections and keep a wet edge to avoid lap marks.
• High-traffic rooms: For kitchens, hallways and kids’ rooms, pick a premium line with a scrubbable or washable rating, and an eggshell or satin sheen.

How to choose a healthier paint

Look for “zero VOC” on the label and check whether the tint is also low or zero VOC. Third-party labels such as Green Seal or GREENGUARD Gold are a good sign, because they test what the paint actually releases into the air, not just what is in the can. Lower odor means rooms are often usable sooner, but still open windows while you paint. Take leftover paint to a household hazardous waste site or paint drop-off program.

At the Accessible Sustainability Alliance, we also believe local governments could speed up this shift by offering rebates to commercial painters and remodeling companies that switch to zero VOC products. Professionals paint far more square feet than any one household, so their choices have the biggest effect on a community’s air.

Frequently asked questions

Is zero VOC paint really VOC free?

Not completely. Zero VOC means the paint has fewer than 5 grams of VOCs per liter. Tints added at the store can raise that number unless you ask for zero VOC colorants.

Does zero VOC paint last as long as regular paint?

Good-quality zero VOC paints now perform close to traditional paints for most indoor walls. For busy areas, choose a premium washable line and a satin or eggshell finish, and prep the wall well.

Is zero VOC paint more expensive?

Sometimes, but the gap is much smaller than it used to be. Many mid-priced store brands now sell zero VOC interior paint. Compare per-gallon prices and coverage for your project.

See your household’s climate impact

Home projects, energy use and everyday purchases all add up. Try our free Household Carbon Simulator to see where your household’s footprint comes from and which changes make the biggest difference.

Related guides

• Global Sourcing vs Local sourcing of Wood Flooring: How Your Choice Impacts the Planet
• Near-Zero Carbon Cement is a potential gamechanger in new constructions
• How to Switch to Refillable Glass Spray Bottles for Cleaning

Sources

• U.S. EPA, Volatile Organic Compounds’ Impact on Indoor Air Quality
• Green Seal, Your Guide to VOCs in Paint and Cleaning Products
• StopWaste / Alameda County, A Guide to Green Paint: Key Environmental and Health Considerations

Written and reviewed by the Accessible Sustainability Alliance editorial team. Last updated October 5, 2026.

The post Zero VOC vs. Traditional Paint: Cost, Durability, and Why Eco-Friendly is becoming more Affordable appeared first on Accessible Sustainability Alliance.

Quick answer: Locally sourced, certified wood flooring is usually the lower-impact choice because it travels fewer miles, comes with a clearer paper trail and is easier to check. Imported flooring is not always worse, but you should ask where the wood was harvested, where it was milled and whether it carries a certification such as FSC.

Why your flooring’s origin matters

Wood is a natural carbon store. The U.S. Forest Service notes that dried tree material is about 50 percent carbon by weight, and that wood products can keep that carbon locked up for months, decades or even centuries depending on how they are used (USDA Forest Service). A solid wood floor that lasts for generations keeps that carbon out of the air for a long time.

That benefit can shrink if the wood comes from a forest that was cleared and not replanted, or if the product is shipped back and forth across oceans and highways. Supply chain choices decide whether a “natural” floor is really a low-impact one.

Transportation: the hidden journey

Imported flooring often moves through several steps. Logs may be harvested in one region, shipped to another for milling, then shipped again to a store near you. Every leg by truck, train or cargo ship burns fuel.

Ocean shipping moves a lot of weight using relatively little fuel per mile, but long distances and extra trips add up. Trucking is usually the bigger concern for the last part of the journey. Flooring that is harvested, milled and sold within the same region skips many of these steps, so it usually has a smaller transportation footprint.

Cheaper up front, but with hidden costs

Global manufacturing can lower the price tag. Lower labor costs and large factories often make imported flooring cheaper per square foot. But a product built from parts made in many places, such as wood from one country and glues or finishes from others, is harder to trace. It is also harder to know what chemicals were used or how workers were treated.

Single-source, regional producers often cost a bit more. In return, you usually get a shorter supply chain, clearer information about materials and support for local jobs.

Forests, rules and illegal logging

The biggest environmental risk with any wood product is where it was cut. Unsustainable or illegal logging in sensitive places, such as tropical rainforests, destroys habitat and releases stored carbon.

The United States has rules to help. Under the Lacey Act, as amended in 2008, it is against the law to import any illegally harvested plant or plant product, including wood, and many imports must declare the species and where it was harvested (USDA APHIS). Even so, labels such as FSC (Forest Stewardship Council) certification give you an extra way to check that the forest is managed for the long term.

Case study: bamboo vs. regional oak

Bamboo is often sold as the eco choice because it grows fast. That is true, but most bamboo flooring is made overseas, shipped long distances and pressed together with adhesives. Regional hardwoods like oak or maple grow more slowly, yet they may travel far fewer miles and can be refinished many times.

There is no single winner. The greener floor is the one with a shorter, well-documented supply chain, low-emission finishes and a long life in your home.

How to make an informed choice

• Ask the seller where the wood was harvested and where it was milled.
• Look for FSC certification or a similar third-party label.
• Choose finishes and adhesives labeled low-VOC.
• Pick a durable floor you can sand and refinish instead of replacing.
• Consider reclaimed or salvaged wood, which reuses boards that already exist.

Frequently asked questions

Is locally sourced wood flooring always more sustainable?

Usually, but not always. Local wood cuts transportation and is easier to trace, but a well-managed, certified import can beat a poorly managed local source. Check both the distance and the forest practices.

What does FSC certified mean for flooring?

It means the wood can be traced to a forest that meets the Forest Stewardship Council’s standards for responsible management. Look for the FSC logo and a certificate number on the product or paperwork.

Is bamboo flooring eco-friendly?

Bamboo regrows quickly, which is a real plus. But long shipping distances and the glues used to make the boards reduce that benefit, so ask about the manufacturer and adhesives before buying.

See your carbon impact

Want to see how home projects, travel and energy use add up? Try our free Household Carbon Simulator to explore your family’s footprint and find the changes that cut the most.

Related guides

• Zero VOC vs. Traditional Paint: Cost, Durability, and Why Eco-Friendly is becoming more Affordable
• Near-Zero Carbon Cement is a potential gamechanger in new constructions
• How to Mow Your Lawn Gas-Free with a Push Reel Mower

Sources

• USDA Forest Service, Forest Carbon FAQs
• USDA APHIS, Lacey Act

Written and reviewed by the Accessible Sustainability Alliance editorial team. Last updated October 5, 2026.

The post Global Sourcing vs Local sourcing of Wood Flooring: How Your Choice Impacts the Planet appeared first on Accessible Sustainability Alliance.

Quick answer: Cambridge researchers found that crushed cement from old concrete can replace the lime used in electric steel-recycling furnaces, and the leftover slag becomes new, reusable cement. Powered by renewable electricity, the process could make near-zero carbon cement at large scale.

Why cement is a big climate problem

Concrete is the most used building material on Earth. Carbon Brief reports that in 2015 the cement industry produced about 2.8 billion tonnes of CO2, around 8% of the global total. If cement were a country, it would be the third-largest emitter after China and the U.S. (Carbon Brief).

Most of that pollution comes from two steps. First, kilns burn fuel to reach very high temperatures. Second, heating limestone releases CO2 from the rock itself. That second part is hard to fix just by switching fuels, which is why new ideas like this one get so much attention.

How “electric cement” works

The method piggybacks on steel recycling. Many steel mills melt scrap metal in an electric arc furnace. To clean out impurities, they add lime, which becomes a waste product called slag.

The University of Cambridge team found that used cement, separated from crushed concrete, works as a substitute for that lime. When the slag is cooled quickly, it turns into reactivated cement that can be used to make new concrete. The researchers said the recycled cement has more iron oxide than normal cement, but that this has little effect on how it performs.

This means one furnace run cleans steel and makes cement at the same time. Because the steel mill already needs the heat, the team said the process adds little cost. The research was published in the journal Nature in 2024 under the title “Electric recycling of Portland cement at scale.”

From lab to industry

Trials at the Materials Processing Institute in the UK showed that recycled cement could be made in an electric arc furnace at scale for the first time. The researchers named the process Cambridge Electric Cement and filed a patent to help bring it to market.

Their goal is big: about one billion tonnes a year by 2050, which the university says is roughly a quarter of today’s yearly cement production. That target is still decades away, and it depends on enough old concrete, enough electric steel furnaces and enough clean power.

Using less concrete still matters

The project lead, Professor Julian Allwood, made a key point. He said producing zero emissions cement would be “an absolute miracle,” but that we also have to reduce the amount of cement and concrete we use.

In other words, better cement is only part of the answer. Designing buildings to use less material, reusing buildings instead of tearing them down and choosing lower-carbon materials where they work all help too. Families can support this by asking about recycled or low-carbon materials on remodel projects and by keeping and repairing what already exists.

Frequently asked questions

Why does making cement release so much carbon?

Cement kilns burn fuel to reach very high heat, and heating limestone releases CO2 from the rock itself. Both steps add up, which makes cement one of the hardest industries to clean up.

Is electric cement available to buy today?

Not widely. The Cambridge team proved it can be made at industrial scale in trials and filed a patent, but it is still moving toward commercial use. Researchers hope for large-scale production by 2050.

What can I do to cut concrete emissions at home?

Use less new concrete where you can, such as gravel or permeable pavers for paths, and keep and repair existing structures. On bigger projects, ask your contractor about low-carbon or recycled concrete options.

See your carbon footprint

Building materials are one part of the climate picture, and your daily choices are another. Try our free Household Carbon Simulator to see where your household’s emissions come from and which changes make the biggest difference.

Related guides

• Global Sourcing vs Local sourcing of Wood Flooring: How Your Choice Impacts the Planet
• Zero VOC vs. Traditional Paint: Cost, Durability, and Why Eco-Friendly is becoming more Affordable
• How to Mow Your Lawn Gas-Free with a Push Reel Mower

Sources

• University of Cambridge, Cement recycling method could help solve one of the world’s biggest climate challenges
• Carbon Brief, Q&A: Why cement emissions matter for climate change

Written and reviewed by the Accessible Sustainability Alliance editorial team. Last updated October 5, 2026.

The post Near-Zero Carbon Cement is a potential gamechanger in new constructions appeared first on Accessible Sustainability Alliance.