The convening lead authors of today's landmark government report on climate change impacts in the United States are available for comment.

Computer analyses of global climate have consistently overstated warming in Antarctica, concludes new research by scientists at NCAR and Ohio State University.

A much-discussed idea to offset global warming by injecting sulfate particles into the stratosphere would have a drastic impact on Earth's protective ozone layer.

The shrinking expanse of Arctic sea ice is increasingly vulnerable to summer sunshine, new research concludes.

Reducing global emissions of carbon dioxide (CO2) over the coming century will be more challenging than society has been led to believe, according to a new research commentary.