Thirty-five years ago, NASA climate scientist James Hansen stood in front of Congress with a bold declaration: Humans are causing an increase in greenhouse gas emissions, and it’s changing our ...

Climate scientist James Hansen taking part in a mock funeral parade during a Climate Change Campaign Action Day on March 19, 2009, in Coventry, England.

Legendary climate scientist James Hansen, in a new study published Thursday, predicts that the Earth's temperature rise will accelerate in the upcoming decades and will reach 2 degrees Celsius ...

A new study lead by James Hansen, a scientist responsible for raising public consciousness about climate change in the 1980s, suggests global temperatures are increasing faster than expected.

Climatologist and NASA scientist James Hansen poses next to a mock grave stone declaring 'Climate change-a matter of life or death' outside the ruins of Coventry Cathedral on March 19, 2009 in ...

James Hansen took a look. By Chelsea Harvey | 02/05/2025 06:06 AM EST The renowned climate scientist is pessimistic that humanity can limit global warming to 2 degrees Celsius.

Climate scientist James Hansen is frustrated. And he’s worried. For nearly 40 years, Hansen has been warning the world of the dangers of global warming.

The former NASA scientist James Hansen says in a new paper that global temperatures will ... When countries signed the landmark Paris Agreement in 2015 to collectively fight climate change, ...

US scientist James Hansen, pictured in 2013, is credited as the first to publicly raise the alarm about climate change in the 1980s. CARL DE SOUZA/AFP/Getty Images ...

In a paper published last month, climate scientist James E. Hansen and a group of colleagues argued that the pace of global warming is poised to increase by 50 percent in the coming decades, with ...

Hansen’s words have heft — he is widely credited as the first scientist to publicly sound the alarm on climate change in the 1980s. But other scientists have pushed back hard.