Carbon footprint

But what about individuals? What can we do to pitch in and help save Earth? There are plenty of things you can do every day to help reduce greenhouse gases and your carbon footprint to make a less harmful impact on the environment. Taking care of Earth is not just a responsibility, it's a necessity. ­In that spirit, HowStuffWorks has come up with 10 things you can do now to help save the planet

The little things can make a big difference. Every time you turn off the water while you're brushing your teeth, you're doing something good. Got a leaky faucet? You might be dripping as much as 90 gallons (340 liters) of water down the drain every day [source: EPA]. So fix it! It's easy and cheap. And stop drinking bottled water. Switch to filtered tap water. You'll save a ton of cash and help reduce a ton of plastic waste in the process.

Walking and biking are obvious ways to reduce greenhouse gases. Plus you'll get some good cardio and burn some calories while you do it. If you live in an area that's not walkable, take advantage of your local mass transit if you can. Or carpool. Even one car off on the road makes a difference

Compact fluorescent light bulbs (CFLs) are great. They can last 10 times longer than incandescent bulbs and they use at least two-thirds less energy, but even CFLS have issues. They're hard to dispose of because they contain mercury. Enter light-emitting diode, or LED, bulbs. They emit light in a very narrow band wavelength so they're super energy-efficient. Start replacing your old incandescent bulbs with LED bulbs now (if you haven't already). They do cost more than CFLs and incandescents, but equivalent LED bulbs can last at least 30,000 hours compared to 1,000 hours for incandescent bulbs, or 8,000 to 10,000 hours for CFLs.