CURRENT ISSUE: January 2007 Read the full newsletter here: PDF
format IPCC's Working Group I Summary ReleasedBy Laura Edwards
Western Regional Climate Center On February 2, the
Intergovernmental Panel on Climate Change (IPCC) released their
report from the first of three Working Groups: "Climate Change
2007: The Physical Basis". This document states that there is
"very high confidence that the globally averaged net effect of
human activities since 1750 has been one of warming". The report
goes on to state that most of the observed increase in globally
averaged temperature during the last century "is very likely due
to the increase in anthropogenic greenhouse gas concentrations".
Over 2500 expert scientists reviewed the document which
summarizes with confidence the burning of fossil fuels has led
to the warming of our planet and the planet will continue to
warm. What does this mean for California? Figure 1. From Our
Changing Climate: Assessing the Risks to California. Reduced
mountain snowpack is one risk outl