Trade in elephant ivory and rhino horn is banned in most countries, but every effort must be made to turn the consumption of wildlife products from status symbol into stigma.

Gulf Oil Spill

Fast fashion is a phenomenon that transcends the runway, crosses borders, and cuts across barriers of class, culture, and emerging economies

A design firm has come up with an answer to highway pollution, running tubes of photosynthetic algae to absorb CO2 pollution from traffic.

Will ocean acidification disrupt the planet's ecosystem before climate change does?

What’s the single biggest action a person can take to reduce their personal impact on climate change? It would seem that the answer is to eat less beef.

Environmental engineer and newly-minted MacArthur Fellow Tami Bond is an expert on "black carbon."