Contemporary climate change Flashcards
1
Q
when was IPCC set up?
A
1988 by WMO and UNEP
2
Q
evidence for contemporary climate change
A
- mean global surface temp risen by 1.1 degrees C over last century
- 2010s were the warmest decade in 1000 yrs
- melting glaciers
- arctic temperatures
3
Q
thermosteric rise
A
oceans warming up. only occur with energy imbalance sea level rise is a cause
4
Q
arctic amplification
A
arctic warming more than anywhere else. huge reduction in sea ice extent and volume
less albedo = + feedback
5
Q
are projections right?
A
they’re good for temp, not ice or precipitation
6
Q
when is there an marked increase in GHG
A
1750
due to human activities
7
Q
how long is the suns solar cycle
A
11 years
no correlation with climate change so climate probs not driven by sun
8
Q
what should we do about changes?
A
act
mitigation is crucial as we won’t be able to adapt quick enough
