Deforestation

Cheryl Knott researches orangutans in Borneo.

Species not seen in decades found in multi-continent frog survey.

Parade of new species crawls out of world's largest rainforest.

Huge changes in tropical rainforest life could occur by 2100.

Many tropical areas still facing deforestation.

New rankings of countries' impact on environment puts U.S. and Brazil at top.

Doctoral student in ecology survives earthquake in Haiti to continue her work promoting sustainable tree farming

The ancient South American Nasca civilization may have caused its own demise by clear-cutting huge swaths of forest, a new study found.

The demand for beef means large swaths of the Brazilian Amazon are being bulldozed,but the government is making changes.

Biofuels may create carbon debt, as land cleared for crops releases carbon.