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World Wildlife Fund
#227
worldwildlife.org
Environmental Defense Fund
#1333
edf.org
The Nature Conservancy
#1972
nature.org
Greenpeace
#2019
greenpeace.org
Sierra Club Illinois Chapter
#4059
sierraclub.org
Natural Resources Defense Council (NRDC)
#5701
nrdc.org
Union of Concerned Scientists
#5947
ucsusa.org
Mother Earth News magazine
#6786
motherearthnews.com
Mandatory Autopsy Law
#7949
thepetitionsite.com
League of Conservation Voters
#7991
lcv.org
Charles Darwin University
#10610
cdu.edu.au
Mass Save
#11617
masssave.com
BirdLife International
#15895
birdlife.org
Nature Canada
#16841
naturecanada.ca
Pheasants Forever and Quail Forever
#17082
pheasantsforever.org
Treehugger
#17444
treehugger.com
Mongabay
#18876
mongabay.com
Conservation International
#19704
conservation.org
The Climate Reality Project
#21370
climaterealityproject.org
KEETSA
#23583
keetsa.com
350.org
#24170
350.org
Rainforest Action Network
#24603
ran.org
INSTANT LUBE INC
#26453
smogtips.com
Vegetarian Times
#27741
vegetariantimes.com
The Daily Digest
#34458
biofuelsdigest.com
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