L1 - Introduction to key concepts Flashcards
1
Q
which gas is the most abundant in the atmosphere out of the following: argon, CO2, CH4 or nitrous oxide
A
argon
2
Q
what GHG has seen the largest relative increase since 1850?
A
Methane
3
Q
how do carbon dioxide concentrations today compare to 500,000 years ago
A
theyre higher today
4
Q
on average, how have cold extremes changed globally since 1850
A
they have decreased
5
Q
with a warming climate, what has happened to relative humidity
A
- decreased
- hasnt changes/ we dont know
6
Q
what does ‘likely’ mean in IPCC reports
A
more than 66% likely
7
Q
increase in aerosol emissions leads to?
A
cooling
