Wednesday, 7 August 2019

Industrial fishing behind plummeting shark numbers


Science News
Research finds marine predators are significantly smaller and much rarer in areas closer to people. Story here.
An ocean "white-tip" shark. Photo by NOAA.

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Agriculture replaces fossil fuels as largest human source of sulfur to the environment

PHYS ORG A PinP photo. Historically, coal-fired power plants were the largest source of reactive sulfur, a component of acid rain, ...