The U.S. Is Getting More Heavy Tornado Days. Scientists Are Trying to Figure Out Why.
The number of tornadoes so far in the United States this year is just above average. But their distribution is changing.
Delger Erdenesanaa
Climate Change Made an Early Heat Wave in West Africa 10 Times as Likely
Temperatures in the region rose above 40 degrees Celsius in February, with humidity pushing the heat index even higher.
All but 7 Countries on Earth Have Air Pollution Above WHO Standard
New research found that fewer than 10 percent of countries and territories met World Health Organization guidelines for particulate matter pollution last year.