244 Flashcards
Types of bag
polyethylene
paper
reusable polyethylene
reusable polyethylene with recycle components
GHG with relative potential
CFC - chlorofluorocarbons
N2O - nitrous oxides
CH4 - methane
CO2 - carbon dioxide
most abundant anthropogenic GHG in atmosphere
CO2
man-made GHG
antropogenic GHG
climate change definition
overall changes that have resulted from increasing green house gases in the atmosphere
global warming definition
increase in global average temperature near the surface of the earth mostly due to GHG concentrations
Natural causes of climate change
volcanic eruptions
continental plate movement
variation in solar radiation
orbital changes
Why does northern hemisphere warm easier?
more land area
specific heat capacity of water is low compared to earth so land heats up faster that water
Effects of climate change
increased global temperatures
increased sea levels, coastal flooding, erosion
increased ocean temperatures
habitat destruction, loss of species
drought, heat waves
decreased food security and land crop yield
increase in extreme rain and weather events
Pillars of sustainability
social
economic
environmental
Ocean acidification
H2O + CO2 -> HCO3-
H2CO3
carbonic acid (not carboxylic)
Coral reef what happens
increase in ocean temperatures stress the coral
coral and algae have a symbiotic relationship where coral provides shelter and protection and algae provides food/energy
with this stress of warmer temperatures, coral kicks out the algae and the coral then bleaches
coral is now no longer suitable to protect/home species
Human health effects of climate change
spread of disease (malaria)
poverty
asthma
fatalities/injuries in extreme weather
limited evidence that GHG emissions affect:
tornadoes, hurricanes
Why can’t reflected heat get out
longer wavelengths after reflection
Source of methance
agriculture, landfills