- on what time frame will the most serious impacts occur? (emphasize
the 100
year + time scale)
- direct impacts of warmer temperatures and their dependence on latitude
(concept
of winner and loser nations)
- impacts of a more vigorous hydrologic cycle (more floods and droughts)
- sea level rise... how is it estimated? what are the uncertainties?
what
countries are most at risk? why does the time scale
over which the rise takes
place matter? (introduce concept of adaptation)
- impacts on the Pacific Northwest (emphasis on water supply)
- fertilizing effect of increased CO2
- how long will the impacts last after the burning of fossil fuels stops?
- note that perpetrators and victims of greenhouse warming are widely
separated in
space and time; much more so than in acid rain and ozone
problems