HEATKEYS

Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate & environment, computer...

News and commentary on culture and politics

The New York Times Green blog explores energy and the environment, tracking the high-stakes pursuit of a greener globe in a dialogue with experts and readers.

The Union of Concerned Scientists is the leading science-based nonprofit working for a healthy environment and a safer world through a combination of independent scientific research and citizen action.

Yale Environment 360 is an online magazine offering opinion, analysis, reporting and debate on global environmental issues.

Green Living tips for reducing your carbon footprint

Leader in certified carbon offsets; join over 600000 individuals & 1800 businesses fighting climate change. Carbon offsets for indiv/business/products » Carbon Offsets » Calculator » Carbon Neutral.

Breaking news on weather, sports, world, science, financial, technology, travel, national, economy, and entertainment news provided by USATODAY.com. USATODAY.com provides video, sudoku, RSS feeds, crossword puzzles, audio, photo galleries, and email....

Tips for travel on USATODAY.com; your site for travel how to information. From international travel tips to packing tips, from summer travel tips to travel safety, answer all of your travel questions with USATODAY.com.

Green Hotels and Responsible Tourism Initiative

CNN.com International delivers breaking news from across the globe and information on the latest top stories, business, sports and entertainment headlines. Follow the news as it happens through: special reports, videos, audio, photo galleries plus i...