Why climate change is not an environmental issue
This video is to promote general awareness of the science of climate change.
This video is to promote general awareness of the science of climate change.
A "snowballing" situation would prove as hard to slow down as a runaway train.
The Arctic seas are being made rapidly more acidic by carbon-dioxide emissions, according to a new report.
German Chancellor Merkel has called for a binding pact by 2015 to reduce carbon emissions.
Dr. Ralph Keeling on atmospheric Oxygen and Carbon Dioxide.
Global warming is affecting our daily lives - including our food supply, public health, economic stability and the need for green jobs.
Local officials and enviros are making plans for a post-global warming America. And so are profit-seeking companies.
Follow National Geographic photographer James Balog across the Arctic as he deploys time-lapse cameras designed for one purpose: to capture a multi-year record of the world's changing glaciers.
Glacier and ice-sheet dynamics in a warming world.