Climate Change Faster Than Expected
An increasing number of validated scientific papers, published since the last IPCC Assessment Report in 2007, shows that climate change is happening now, and that it is speedier than suggested only 2 years ago.
The evidence for this statement is from many areas. Some of the areas showing change are shown below.
-Multiple plants and animals, in widespread sites, are already showing evidence of climate change. Examples include the timing of plant flowering, animal breeding, and lake thawing.
-Higher ocean surface temperatures in Pacific & Atlantic hurricane-formation zones leading to stronger cyclones are definitely related to anthropogenic warming.
-Ocean acidification is occurring quickly, due to CO2 in massive amounts dissolving in salty water. This will have major impacts on marine ecosystems and subsequently food supplies for many countries.
-Calculated sea level rise this century will be greater than that calculated just 2 years earlier. It is expected to rise at least a meter, according to new scientific evidence.
-The increased melting of the Greenland ice sheet which began in the summer of 2004 has been definitely related to global warming.
-The West Antarctic Ice Shelf has undergone rapid melting over the last 10 years and has suffered 10 major ice shelf collapses over that time.
-Northern polar sea-ice is melting much quicker than previously estimated, and it is likely that the Arctic will be free of ice in summer within a few decades.
-Thawing of the boreal permafrost is proceeding much faster than previously calculated, and is expelling a lot more greenhouse gases than expected.
The warming that is now taking place is expected to go on for many centuries, after all human-sourced CO2 escape ceases. This is due to the significant delays that exist in the climate-ocean system, as well as the long half-life of atmospheric carbon dioxide.
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