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.

A nationwide initiative starting tomorrow will enable volunteers to track climate change by observing the timing of flowers and foliage.

Leading representatives from indigenous and scientific communities will take part in a landmark climate change symposium at NCAR in Boulder.