The jet stream, one of the most dramatic forces of nature, was discovered during World War II when aviators first tried to cross the Pacific. This strong wind current is often defined as upper ...

The jet stream, one of the most dramatic forces of nature, was discovered during World War II when aviators first tried to cross the Pacific. This strong wind current is often defined as upper ...

But it has been hard to draw firm conclusions since real-world measurements of the jet stream only go back 60 years, Broadman said. By that point, greenhouse gas emissions spewed during the ...