Giving those villagers an incentive to preserve forests by allowing sustainable levels of harvesting, it turns out, is a far better way to save those forests than erecting tall fences around them.

ECONOMIST: Local difficulties

One way to do this is to make it more economically viable for the countries hosting these rain forests to preserve them.

CNN: All About: Forests and carbon trading

The modern freeways and suburban sprawl give way to high grasslands in the Sierra Azul Open Space Preserve and dense redwood forests north of Santa Cruz.

BBC: The road to Hollywood, California

The event gathered politicians, researchers and educators aiming at discussing one of the main worry themes in planet: the sustainability and the role of schools in building a country with a capacity to preserve its biodiversity and its forests.

UNESCO: OFFICE IN BRASILIA

Does it matter that Red State conservatives want to preserve the oceans, rivers, and forests to camp, hunt, and fish in them?

FORBES: NASCAR Green Is Really Purple

As he explored wild country, he heard a call to preserve our country's heritage that echoed throughout our forests and river valleys.

WHITEHOUSE: Presidential Proclamation -- National Park Week, 2012