thawing permafrost Flashcards
1
Q
what is permafrost?
A
ground that remains frozen for 2 or more consecutive years and is composed of rocks, soil, sediments and ice
2
Q
how much carbon is thought to be frozen in the arctics permafrost?
A
1,400 billion tons which is twice as much carbon than there is currently in the atmosphere
3
Q
how much faster is the arctic warming compared to the rest of the world?
A
2 times faster
4
Q
what does thawing permafrost release?
A
carbon
methane
5
Q
how much can 2 degrees Celsius warming impact the percentage of the worlds permafrost?
A
loss of 40%
6
Q
what did the arctic report card 2019 from NOAA find?
A
arctic permafrost thawing is releasing 300-600 million tons of carbon into the atmosphere per year
