‘Flash Droughts’ Are the Midwest’s Next Big Climate Threat

‘Flash Droughts’ Are the Midwest’s Next Big Climate Threat

Fast-moving droughts like this one are developing more and more quickly as climate change pushes temperatures to new extremes, recent research indicates—adding a new threat to the dangers of pests, flooding, and more long-term drought that farmers in the US already face.

Is the Split Over Covid-19 Really About Politics?

Is the Split Over Covid-19 Really About Politics?

(Witness House Republican Devin Nunes telling Fox Business viewers on Sunday that “it’s a great time to just go out, go to a local restaurant.”) According to a new NPR/PBS NewsHour/Marist poll, only 40 percent of Republicans believe the coronavirus is “a real threat,” compared to 76 percent of Democrats.

Machine Learning Can Use Tweets To Spot Critical Security Flaws

Machine Learning Can Use Tweets To Spot Critical Security Flaws

Researchers at Ohio State University, the security company FireEye, and research firm Leidos last week published a paper describing a new system that reads millions of tweets for mentions of software security vulnerabilities, and then, using their machine-learning-trained algorithm, assessed how much of a threat they represent based on how they're described.

Here’s how forests rebounded from Yellowstone’s epic 1988 fires – and why that could be harder in the future

Here’s how forests rebounded from Yellowstone’s epic 1988 fires – and why that could be harder in the future

Historically, high-severity fires kill trees but do not destroy the forest. In Yellowstone and Grand Teton National Parks, fires in 2016 burned young forests that regenerated from fires in 1988 and 2000.