Effects of Global Warming
v Concentration of Carbon has risen from 250 ppm during the pre-industrial revolution period to the current 380 ppm and is projected to reach 500 ppm in the year 2050.
v Computer simulations: projected temperature increases 4 degree Celsius by 2100
v country of Tuvalu and Bangladesh might ceased to exist in years to come due to a rising sea levels
v Natural disasters such as hurricanes, droughts, sea levels rise, acidification will occur
v Studies have concluded that global warming may drive one quarter of all land animals and plants to extinction by 2050. The absolute worst case scenario that we are facing is a thrilling 1/3 to 1/2 of all plant and animal species facing extinction.
v Ecologically rich hot spots where potentially most damage would be done include places like South Africa's Cape Floristic Region, and the Caribbean Basin. Doubling of present carbon dioxide levels and rising temperatures that could eliminate 56,000 plant and 3,700 animal species in these hot spot regions.
v Besides physical impacts, social impacts for example, 1 billion refugees, epidemics, food supply disruption, destruction of infrastructure will happen
v Stern review (2006): eventual BAU path will lead to costs of 5-20% GWP
