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Leaving your car at home twice a week can cut greenhouse gas emissions by 1,600 pounds per year.
Don't idle! Remind your school system to turn off bus engines when buses are parked. Exhaust from idling school buses can pollute air in and around the bus, and can enter school buildings through air intakes, doors, and open windows. Constant idling also wastes fuel and money, and school bus engines really need only a few minutes to warm up.
Make your home an Energy Star! When you do home maintenance, also do a home energy audit to find out how you can save money by making your home more energy efficiency. And if every American home replaced just one conventional light bulb with a compact fluorescent light bulb, we would save enough energy to light more than 3 million homes a year.
eCycle it! Take your old computer, DVD player, or other electronics to an electronics recycling center. Reusing and recycling materials like copper, gold, and others saves natural resources and reduces mining and processing. eCycling also helps avoid land, air, and water pollution by capturing and reusing hazardous substances such as lead or chromium.
Make it a full load! Run your dishwasher only when it's full. Don't pre-rinse dishes - tests show pre-rinsing doesn't improve dishwasher cleaning, and you'll save as much as 20 gallons of water per load. When you buy a new dishwasher, look for one that saves water. Water-efficient models use only about only about 4 gallons per wash.
Shower power! A full bathtub requires about 70 gallons of water, but taking a five-minute shower saves water by using 10 to 25 gallons. Put a little timer or clock near your shower so you can see how fast you are. Save even more water, and money on your water bill, by installing a water-efficient showerhead, or ask your landlord to install one if you rent.
Make it a full load! The average washing machine uses 40.9 gallons of water per load. If you buy a new washer, shop for a high-efficiency washer that needs less than 28 gallons of water per load. To achieve even greater savings, wash only full loads of laundry or be sure to choose the appropriate load size on the washing machine.
Compost it! Compost helps improve soil so it holds more water and plants grow better. Allow grass clippings to stay on the lawn, instead of bagging them. The cut grass will decompose and return to the soil naturally. Food scraps and kitchen waste also make good compost, and you save money on fertilizers or other additives.
Don't trash it - reuse it! Be creative as you look for new ways to reduce the amount or kinds of household waste. Give cardboard tubes to pet hamsters or gerbils. Plant seeds in an egg carton. Make a flower pot out of a plastic ice cream tub. By thinking creatively, you will often find new uses for common items and new ways to recycle and reduce waste.
Just bag it! Help protect the environment when you shop. Keep reusable bags on your car seat or near your door so they are easy to grab when you go. And you can even combine shopping bags - just tell the cashier that you don't need a bag, then put all your purchases together in one bag… just be sure to hang on to your receipts!
Travel green! Look for hotels that encourage guests to use less water or energy. Hang up your towels to dry so you can use them again. Use the sheets more than a night or two. When you go out, look for local foods and souvenirs to reduce transportation. Before you go, unplug your computer, DVD player, and other electronics, and turn down your thermostat.
During hot weather, don't top off your gas tank. Refuel your car or truck in the early morning or the evening when it's cooler. A small fuel spill may not seem like much, but every spill evaporates and adds to air pollution, and fuel pumps with vapor recovery systems can feed a spill back into their tanks - after you paid for it. So, in hot weather - don't top off!
Breathe easy! On unhealthy air pollution "action alert" days, wait to mow your lawn until it's cooler in the evening or early the next morning. You help reduce air pollution for everyone near you if you run gas-powered equipment, like lawn mowers, when it's cooler. You also protect your health by avoiding ground-level ozone during the warmest part of the day.
SOURCE:
http://www.epa.gov/earthday/tips-saveenergy.htm