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Cancer Research

Photo: A researcher in a body suit carrying a dish of cisplatin chemotherapy drug
Gloved hands cradle a bright hope in the war against cancer. A researcher at a drug manufacturing plant in Pennsylvania displays a petri dish of cisplatin, a chemotherapy drug containing platinum. Cancer cells divide and reproduce at highly abnormal rates. Cisplatin attacks the cell cycle, killing them and reducing the size of tumors. Chemotherapy is one of the most successful methods to combat cancer.
Photograph by James L. Amos

Health and Human Body Topics

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Photo: Hot spring in Ethiopia's Danakil Depression

Pathways to a Greener World

Join the climate conversation.

2008 Grand Prize Winner

Photo Gallery

See who won this year’s grand prize trip to the Grand Canyon!

The Green Guide

Photo: Green flower

Get tips for helping the environment.

Support Conservation

Photo: Two penguins

Help conserve the world's natural resources.