The World’s Leading Climate Scientists Have Spoken Again

The IPCC (Intergovernmental Panel on Climate Change) Working Group I, the world’s leading climate scientists, released its final report on January 30, 2014 “Climate Change 2013: The Physical Science Basis”.  There are no surprises here – the earth is warming at an alarming rate due in large part to humans burning fossil fuels.  Let’s take a quick look at the highlights – the following are the Headline Statements from the Summary for Policymakers (;

·         “Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia. The atmosphere and ocean have warmed, the amounts of snow and ice have diminished, sea level has risen, and the concentrations of greenhouse gases have increased.

·         Total radiative forcing is positive, and has led to an uptake of energy by the climate system. The largest contribution to total radiative forcing is caused by the increase in the atmospheric concentration of CO2 since 1750.

·         Human influence on the climate system is clear. This is evident from the increasing greenhouse gas concentrations in the atmosphere, positive radiative forcing, observed warming, and understanding of the climate system.

·         Continued emissions of greenhouse gases will cause further warming and changes in all components of the climate system. Limiting climate change will require substantial and sustained reductions of greenhouse gas emissions.”


You can find these summary statements, along with the full report from the IPCC at


The world needs to respond and the United States should be taking the lead.  The science is clear, there is no more time for debate.


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