We talk about the jet stream all the time when we’re telling you about the upcoming forecast. It’s one of the most important things in our sky that affects whether you see snow or sun at your home.

Climate scientists have long watched the jet stream with fascination and growing concern. These rivers of air racing across our planet at altitudes of roughly 5-9 miles dictate much of our day-to-day ...

Extreme and prolonged heat waves are becoming more frequent as the global climate warms. Unusually hot conditions across western North America, the Mediterranean and southern Asia this year have been ...