Recent climate changes have increased Alaskan wildfires, releasing greenhouse gases that had been locked in the soil.
Most coastal marshes could be underwater by 2100 if sea level rise occurs rapidly, says new research.
Three new studies provide evidence of a warming climate.
NASA scientist Ron Kwok details new technology he is using to monitor how extensively Arctic sea ice is melting from below, a key indicator of the ice's long-term stability.
In an Oregon Mountain region, a change in plant populations marks the warming of local temperatures.
Arctic researcher Jason Box is going to great lengths to recover on-the-ground images of the extraordinary loss of ice from the Petermann Glacier.
Dr. Heidi Cullen talks to Dr. John Townshend about his current research which tracks rainforest deforestation.
The atmosphere isn't the only place carbon dioxide caused by human activity goes.