EESA10H3 Chapter Notes - Chapter L#12: 2Pm, Kyoto Protocol, Aerosol Spray
5 Jul 2018
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LECTURE 12 (pg 143-156)
Global Climate Change
- Biggest driver of climate changeis carbon dioxide
Anthropogenic Gases and the
Enhanced Greenhouse Effect
- CO2 and nitrous oxide
are both greenhouse
gases too many of
them in atmosphere =
enhanced greenhouse
effect = warm up the
earn
- Too much CO2 affects
the global carbon cycle:
a set of processes by
which carbon moves
form the env. Through
living things and back
into the env.
- Fossil fuels are apart from
this cycle b/c they’re
essentially decayed organic
matter that was stored
now it is being reinjected
into circulation in the form
of CO2 no pathway to
sequester this influx of CO2
= rising CO2 levs
- The warming effect of
anthropogenic greenhouse
gases is often quantified as
the net gain in radiation
energy that results from
reducing outgoing
terrestrial radiation (heat)
relative to incoming solar
radiation
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Co2 and nitrous oxide are both greenhouse gases too many of them in atmosphere = enhanced greenhouse effect = warm up the earn. Too much co2 affects the global carbon cycle: a set of processes by which carbon moves form the env. Through living things and back into the env. Fossil fuels are apart from this cycle b/c they"re essentially decayed organic matter that was stored now it is being reinjected into circulation in the form of co2 no pathway to sequester this influx of co2. The warming effect of anthropogenic greenhouse gases is often quantified as the net gain in radiation energy that results from reducing outgoing terrestrial radiation (heat) relative to incoming solar radiation. Co2 has accounted for over half ot te net gain in radiation energy since the 1990s . 95% of us emission of co2 were because of fossil fuels. Warmer surface air = melting snow + glaciers = rise in sea level.
