The sun radiates ___ and some if transferred to earth
energy
1 of 15
most this energy is absorbed by earth's surface (having warming effect) but some is reflected back into space by...
earth's surface or gasses in earth's atmosphere
2 of 15
the earths surface cools by emitting _____ radiation
infrared radiation
3 of 15
some of this radiation is absorbed by _______ and radiated back to earth's surface
gasses in the atmosphere (greenhouse gasses)
4 of 15
without the greenhouse effect, the earths surface would be (cooler/warmer?)
cooler - by about 20 degrees, meaning most the water would be trapped with ice
5 of 15
give an example of a greenhouse gas
methane, CO2 and H2O
6 of 15
Increasing greenhouse gases would (increase/decrease) temperatures
increase
7 of 15
how does burning fossil fuels (coal, crude oil, natural gas) contribute to the greenhouse gasses?
carbon is trapped in fossil fuels so by burning it, it releases Carbon dioxide
8 of 15
So why do we still burn fossil fuels?
to generate electricity, heating homes, transportation (fuel)
9 of 15
methane is a more powerful greenhouse gas than CO2. It's released when fossil fuels are...
extracted
10 of 15
It can also be produced naturally from... (list)
swamps, livestock, rice fields, landfill sites
11 of 15
CO2 levels remained relatel;y constant up until the i___ r____ where they increased significantly
Industrial revolution
12 of 15
there's a strong correlation between CO2 levels and temp increase. How can we prove with ice core data that one is affecting the other and it's not just coincidence?
Ice core data - O2 in ice can determine temp at time it fell as snow - copare that to the CO2 levels in the ice core and there's a clear link
13 of 15
How can we use IR spectroscopy to prove the same?
IR spectroscopy shows CO2 absorbs certain wavelengths of infrared radiation. as CO" increases, more infrared radiation is absorbed
14 of 15
How can satellite date prove the same?
satellite date can measure amount of infrared radiation leaving atmosphere. as CO2 levels rise, less Infrared is leaving atmosphere
15 of 15
Other cards in this set
Card 2
Front
most this energy is absorbed by earth's surface (having warming effect) but some is reflected back into space by...
Back
earth's surface or gasses in earth's atmosphere
Card 3
Front
the earths surface cools by emitting _____ radiation
Back
Card 4
Front
some of this radiation is absorbed by _______ and radiated back to earth's surface
Back
Card 5
Front
without the greenhouse effect, the earths surface would be (cooler/warmer?)
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