EESA10H3 Lecture Notes - Lecture 12: Algal Bloom, Ozone Depletion, Smog
5 Jul 2018
School
Department
Course
Professor
LECTURE 12
GLOBAL CLIMATE CHANGE AND HUMAN
HEALTH
-Climate: trends in weather patterns over an
extended period of time (year)s
-Climate system: interactive system of 5
compartments
oAtmosphere
oLand surface
oHydrosphere
oBiosphere
oCryosphere
-Earth’s natural greenhouse effect
oEnergy form sun warm’s earth’s surface
energy radiates back toward space
water vapour (cloud) and CO2 + other
gasses are heated they radiated longer-
wavelength in all directions (space or
warms the
air and the
Earth’s
surface)
olast ice age
was about
10k years
ago
Greenhouse Gasses
-water vapour, CO2,
CH4, N2O
- - methane is 20x more potent than CO2 (but its conc.
Is much lower than CO2)
-find every time CO2 increased, we saw an increase in
temperature
Processes Affecting Increase of Greenhouse Gases
-Fossil Fuels
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Climate: trends in weather patterns over an extended period of time (year)s. Climate system: interactive system of 5 compartments: atmosphere, land surface, hydrosphere, biosphere, cryosphere. Earth"s natural greenhouse effect: energy form sun warm"s earth"s surface. Energy radiates back toward space water vapour (cloud) and co2 + other gasses are heated they radiated longer- wavelength in all directions (space or warms the air and the. Earth"s surface: last ice age was about. Ch4, n2o methane is 20x more potent than co2 (but its conc. Is much lower than co2) find every time co2 increased, we saw an increase in temperature. Fossil fuels: electricity generated by coal, transportation, industrial process, residential and commercial uses. Burning fossil fuels etc takes thigns that are in storage and putting them back into the atmosphere. Largest emitters: china, us, canada is 10th. 20th century was hottest in past 1000 years. 20 warmest years occurred since 1980 sea ice is melting sea level rise by.
