August 13, 2019

How to Reduce Exposure to Air Pollution

Testing the air along New York’s bike paths, Columbia scientists found levels of sooty black carbon were 25 percent lower on those more than 50 meters away from roads designated as truck routes than those on or near truck routes.
Read More
August 12, 2019

Saving the Arctic’s ‘Last Ice Area’ Is a Race Against Time

Canada has moved to protect the region, where Arctic wildlife is expected to make its last stand against climate change. Scientists, including Bob Newton, a senior research scientist at Columbia University, say it's not enough.
Read More
August 8, 2019

Climate Change Threatens the World’s Food Supply, United Nations Warns

A particular danger is that food crises could develop on several continents at once, said Cynthia Rosenzweig, a senior research scientist at the NASA Goddard Institute for Space Studies and one of the lead authors of the report.
Read More
August 8, 2019

Alaska Records Warmest Month Ever in July with Coastline Barren of Sea Ice

“We are seeing record after record after record,” said Marco Tedesco, a climate scientist at Columbia University’s Lamont-Doherty Earth Observatory, of the heat and melting episodes.
Read More
August 6, 2019

Space Telescope Would Turn Earth into a Giant Magnifying Lens

Astronomer David Kipping of Columbia University has proposed a powerful space telescope—one with the equivalent of a 150-meter mirror—that would use Earth’s atmosphere itself as a natural lens to gather and focus light.
Read More
August 5, 2019

This Year’s Fire Season in California Could Be ‘Very Active’

“A heat wave today is going to have a much more potent influence on flammability than one 150 years ago when temperatures were 3.5 degrees cooler,” said Park Williams, a climate scientist at Lamont-Doherty Earth Observatory.
Read More
August 1, 2019

A heat wave is turning Greenland’s ice to slush. That’s bad news.

Observations made by Marco Tedesco, a polar scientist at Lamont-Doherty Earth Observatory, reveal that 2019 is shaping up to rival 2012, the Greenland ice sheet's worst melt year on record.
Read More