The 100th meridian, where the Great Plains begin, may be shifting

In 1878, the American geologist and explorer John Wesley Powell drew an invisible line in the dirt-a very long line. It was the 100th meridian west, the longitude he identified as the boundary between the humid eastern United States and the arid Western plains. Running south to north, the meridian cuts northward through the eastern states of Mexico, and on to Texas, Oklahoma, Kansas, Nebraska, the Dakotas, and the Canadian province of Manitoba on its way to the pole. Powell, best known for exploring the Grand Canyon and other parts of the West, was wary of large-scale settlement in that often harsh region, and tried convincing Congress to lay out water- and land-management districts crossing state lines to deal with environmental constraints. Western political leaders hated the idea-they feared this might limit development, and their own power-and it never went anywhere. It was not the first time that politicians would ignore the advice of scientists.

The 100th meridian, where the Great Plains begin, may be shifting

In 1878, the American geologist and explorer John Wesley Powell drew an invisible line in the dirt-a very long line. It was the 100th meridian west, the longitude he identified as the boundary ...

Wed 11 Apr 18 from Phys.org

The 100th Meridian, Where the Great Plains Begin, May be Shifting, Wed 11 Apr 18 from Laboratory Equipment

The 100th meridian, where the Great Plains begin, may be shifting, Wed 11 Apr 18 from Eurekalert

A major climate boundary in the central U.S. has shifted 140 miles due to global warming

A boundary that divides the humid eastern U.S. and the dry western Plains appears to have shifted 140 miles to the east over the past century due to global warming.        

Fri 13 Apr 18 from USA today

@usatoday @usatodayweather pushes Fake Climate News about the 100th meridian Agricultural belt

Supposedly the climate of the US Agricultural Belt has shifted 100 miles east according to a model analysis. But as we know, climate models aren’t reality. Actual data analysis shows it ...

Wed 18 Apr 18 from Watts Up With That?

North American climate boundary pushed 140 miles eastward by climate change

A historic climate boundary which marks the division between the humid eastern region of North America and the more arid western region has deviated 140 miles to the east of its original location ...

Mon 16 Apr 18 from Inhabitat

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