Wednesday, May 15, 2019

Two-thirds of world's longest rivers throttled by mankind: study

PHYS ORG
The design of the "site c" dam in B.C.

Almost two in three of Earth's longest rivers have been severed by dams, reservoirs or other manmade constructions, severely damaging some of the most important ecosystems on the planet, researchers said Wednesday. Story here.

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The Fertilizer Falacy - Pushing Yields up and Profit Down

Understanding Agriculture  Nitrogen fertilizer is applied to winter wheat.  Photo by Michael Trolove. There’s a deeply held belief in modern...