Alarming heat and humidity killed hundreds of cows in Iowa last month. These losses have further decreased the size of the overall U.S. cattle herd, which has shrunk to a more than 50-year low.
The global rise in extreme weather is likely to bring along more fatal heart attacks, new research this week suggests. The study found that exposure to heat waves and cold snaps was associated with higher odds of heart attack deaths. This associated risk was even greater on extreme heat days that also featured high…