Above: Massive wildfires torched tinder-dry California in August 2018, after the state experienced its hottest month on record in July. The record heat was caused by an unusually extreme jet stream ...

Like an undulating seesaw, weather in some regions swings from drought to heavy rain under the weight of climate-induced changes, according to an analysis published in Geophysical Research Letters.

Universal motion: researchers have found that patterns of travel in different cities are surprisingly universal. (Courtesy: iStock_Nikada) Patterns describing how far and how frequently people travel ...