The Southern Ocean is indeed a significant carbon sink — absorbing a large amount of the excess carbon dioxide emitted into the atmosphere by human activities — according to a new study led by NCAR.

Scientists have reconstructed Earth's climate in the 24,000 years since the last ice age, highlighting key drivers of climate change and the influence of human activity.

Warming temperatures near Earth's surface are playing an increasing role in pushing up the height of the tropopause.

The massive columns of smoke generated by a nuclear war would alter the world’s climate for years and devastate the ozone layer, endangering both human health and food supplies, new research shows.

International agreements to protect the ozone layer have been so successful that they will prevent an estimated 443 million cases of skin cancer and 63 million cataract cases for people born in the United States through the end of this century, according to new research.