HOME / slate green challenge: Help the planet.

Paper TigerTrimming CO₂ pounds at home and in the office.

By Meaghan O'Neill and treehugger.comUpdated Monday, Dec. 11, 2006, at 3:06 PM ET

What's the "Green Challenge"? Click here. If you've completed the weekly action quizzes, click here for the wrap-up quiz.

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• From dead batteries to cell phones to copiers, recycle equipment whenever possible. Click here to find electronics and other recycling centers in your area.

• Ask your workplace to stock break areas with real plates, silverware, and cups instead of paper and plastic. Or bring your own.

• Many household cleaners are made from petrochemicals, and most come packaged in plastic. Making your own household cleaners from natural ingredients is easy (and they work, we promise). By reusing spray bottles, you'll save plastic, and, hence, more CO₂emissions.

• If you have a place to do it, composting household waste is pretty simple, helps reduce your landfill contribution, and leaves you with nutrient-rich soil.

• Yard waste (grass clippings and leaves) accounts for 12 percent of the junk that goes into landfills. Next time you mow the lawn, leave the clippings where they fall. They decompose quickly and return nutrients to the soil, which reduces the need for fertilizers and reduces landfill waste, which in turn reduces CO₂emissions. (Click here for more mowing tips.) You can also mulch leaves and then use them to bed down your garden for winter.

• Use organic fertilizers, which are made from natural materials, instead of fossil-fuel-intensive synthetics for house plants, gardens, and lawns.

• Forgo using a leaf blower this fall (and get a good workout from raking by hand).

(Click HERE to launch this week's action quiz.)