Arctic Sinkholes
The mostly frozen ground surface in the tundra or taiga
Permafrost
subterranean layer of rock permeable to water
Aquifer
Civilian Conservation Corps
The name of the flammable gas responsible for Arctic sinkholes
Methane
Aquatic habitat in the ocean beyond the continental shelf
Oceanic zone
NPS
National Park Service
The mysterious 150 foot deep crater had a volume of at least 10__________________
Olympic Swimming Pools
Microscopic marine algae
Phytoplankton
NEPA
National Environmental Policy Act
The amount of warming this century, with double this amount occuring in the Arctic
2 degrees Fahrenheit
habitat with annual rainfall between 50 and 260 inches, constant humidity level between 77 and 90 percent and covered in trees creating a canopy
Tropical Rainforest
FDR
Franklin Delano Roosevelt
Permafrost contains “carbon frozen in time”. The stocks of carbon in permafrost equal 1,400 billion metric tons, almost twice as much carbon as is currently in earth’s_________________________
Atmosphere
Taking an area which has been degraded and rebuilding the area
Restoration
CWA
Clean Water Act