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Supertopics:
Soil Degradation Miscellany
Soil Degradation through 2017
Documents:
United Nations Global Land Outlook report (summary)
agrochemicals undermine intrinsic soil fertility
web
Kristin Ohlson
Orion Magazine
2016-04-14
global warming releases more carbon from soil
web
ScienceDaily
2014-09-03
debating the soil quality of the southern Gill Tract
why healthy soil is important (overview)
web
Renee Cho
Columbia Climate School
2012-04-12
conquest of the land over 7000 years
web
W. C. Lowdermilk
USDA
1953-08-01