Texas drought is reshaping the American livestock industry.

Companies that disclose their emissions see a small rise in stock price compared to others that keep mum.

A smart-grid-savvy official departs his post.

Sequestering carbon by regrowing the Gulf's wetlands.

New limits on mercury and lead are causing the nation's oldest, dirtiest plants to shut down.

Dolphin for dinner? It may be more common than you think.

Guidelines for gardeners acknowledge that plants can now survive farther north.

As U.S. seeks a permanent repository, it might look to Europe for lessons.

High-flying satellite makes a crystal-clear image.

Show this to your skeptical friends.