Earth Matters

Tom Brokaw discusses Haiti relief efforts

Polar bears fight climate change and increase in man-made pollutants

MNN week in review: Extreme sports and pragmatic Buddhists

Nitrogen, the other greenhouse gas

Green slug is discovered to be part animal, part plant

Obama promises historic relief effort, $100 million to Haiti

Bizarre sea slug is half plant, half animal

The nationality of wild and domesticated nature

David Letterman wants you to help Haiti

Troubleshooting stingrays using tools

42 tons of poison to be dumped on island to eradicate rats

Obama offers help and 'unwavering support' to Haiti