First 5 Flashcards
1
Q
Fast feedback
A
Immediate to 10s of years response to global temperature change
2
Q
Slow feedbacks
A
1,000’s to 10,000’s of years response
3
Q
Orbital forcing
A
0.25W/m^2
This is not enough energy to raise global temperature by 5 degrees Celsius. This indicates there are fast and strong Feedbacks amplifying the small forcing
4
Q
Carbon cycle
A
Positive and negative feedback
Acts as a fertiliser for vegetation
30% of the CO2 from humans have been taken up by the ocean and vegetation. It is also amplifying the global temperature increase
5
Q
Carbon cycle positive
A
Initial change | | \ / Climate warming | | \ / CO2 degas from oceans | | \ / Increase atmospheric CO2 | | \ / CO2 acts as the | | \ / Amplified warming
6
Q
Carbon cycle negative
A
Initial change | | \ / Climate warming | | \ / Tectonic uplift of mountains | | \ / Exposed silicate rocks | | \ / Chemical weathering drawdown atmospheric CO2 | | \ / Reduced warming