Another human footprint

[knocker]

Another human footprint: Rising anthropogenic nitrate levels in the North Pacific Ocean

 

Human-induced changes to Earth's carbon cycle - for example, rising atmospheric carbon dioxide and ocean acidification - have been observed for decades. However, a study published this week in Science showed human activities, in particular industrial and agricultural processes, have also had significant impacts on the upper ocean nitrogen cycle.

Read more at: http://phys.org/news/2014-11-human-footprint-anthropogenic-nitrate-north.html#jCp

 

Study

 

http://www.sciencemag.org/content/346/6213/1102

Edited November 27, 2014 by knocker