Looking for the best air purifier at a price you can afford? You'll want to start your search by considering options from leading makers of air filters and purifiers, including Oreck, Honeywell, General Electric, Holmes, Hunter and Bionaire. A good purifier doesn't have to break the bank, either - reliable models are available for under $100.

We should all be concerned with saving the rainforest, and we can do our part by making small changes to our lifestyles.

Rainforests are the dynamic engine of the Earth's biosphere; they fix carbon from the atmosphere, and the aspiration of plants in the rain forests produce nearly 10% of the oxygen we need to live (over 70% of the oxygen is generated by algae and plankton on the world's oceans).

Biofuels are hot. But how hot? Here are "just the facts."

The World Wildlife Foundation is a dedicated group whose Directors do not receive any salary, do not receive any wage.

Anyone who is a bird watcher belongs to a passionate group of people.

If you are not a person who enjoys shopping, then trying to find a pair of bird watching binoculars may be tiresome.

Bird watching hobbyists across the globe are enjoying the wealth of information that is now available to them on the internet.

Many folk find that backyard bird watching is a great way to get introduced to the activity.

You don't have to be an environmental guru to save the earth. Here are some very easy things you can do right now to help save the earth.