Nuclear war would have profound effects on global food production, resulting in devastating famine.

Climate change is sharply increasing the risk of a catastrophic megaflood in California that could submerge large swaths of the state and displace millions of residents.

Emissions from North American wildfires can have impacts on sea ice thousands of miles away, scientists find.

Haskell Indian Nations University has received $20 million in funding from the U.S. National Science Foundation (NSF) to lead a new research hub where Indigenous knowledge-holders will work with university-trained scientists to address the impacts of a changing climate on their coastal communities. NCAR is a collaborator in the hub.

As warming ocean temperatures threaten the existence of coral reefs, scientists at NCAR have successfully used an extremely high-resolution computer simulation of ocean circulation to identify possible “thermal refugia” where these biodiverse ecosystems are more likely to survive.