Climate Change
Climate Change
Continued greenhouse gas emissions at or above current rates would cause further warming and induce many changes in the global climate system during the 21st century that would very likely be larger than those observed during the 20th century.
t continental, regional, and ocean basin scales, numerous long-term changes in climate have been observed.
These include:Changes in Arctic temperatures and ice, Widespread changes in precipitation amounts, ocean salinity, wind patterns; and aspects of extreme weather including droughts, heavy precipitation, heat waves and the intensity of tropical cyclones.
nnual fossil CO2 emissions increased from an average of 6.4 GtCper year in the 1990s, to 7.2 GtC per year in 2000-2005.
Analysis of climate models
together with constraints from observations enables an assessed likely range for climate sensitivity and provides increased confidence in the understanding of climate system response to radiative forcing.
Assumes doubling of carbon dioxide concentration
Model experiment - not a projection
Estimates response to sustained radiative forcing.
For the next two decades a warming of about 0.2�C per decade is projected for a range of SRES emission scenarios.
PRTR
A disclosure phrase here.
CO2 emissions