HIST 2500 Lecture Notes - Lecture 24: Ice Storm, Correlation Does Not Imply Causation, Northern Hemisphere
Document Summary
Key points: anthropogenic global warming, greenhouse effect, kyoto protocol. Svante arrhenius: anthropogenic global warming, greenhouse effect, guy callendar, chlorofluorocarbons (cfcs, un framework convention on climate change, by 2007 country going in wrong direction. Spatial agreement between regions of significant warming across the globe and locations of significant observed changes in many systems consistent with warming is very unlikely to be due solely to natural variability. Ipcc found that since 1961 global sea level had risen 1. 8mm per year, by 1993 they were rising at 3. 1mm per year. Sea level rise caused by melting glaciers, and thermal expansion of the ocean. Found that in 1900-2005: significant increase in precipitation in eastern north and. South america, northern europe, north and central asia. 1900-2005: significant decrease in precipitation in the sahel, mediterranean, southern africa and asia. In 2007 ipcc tried to make it clear what the observations were. Average northern hemisphere temperatures during the second half of the.