A report of Working Group I of the Intergovernmental Panel on Climate Change: Summary for policymakers

The Working Group I contribution to the IPCC Fourth
Assessment Report describes progress in understanding of
the human and natural drivers of climate change,1 observed
climate change, climate processes and attribution, and
estimates of projected future climate change. It builds
upon past IPCC assessments and incorporates new findings
from the past six years of research. Scientific progress
since the Third Assessment Report (TAR) is based upon
large amounts of new and more comprehensive data,
more sophisticated analyses of data, improvements in
understanding of processes and their simulation in models
and more extensive exploration of uncertainty ranges.

Summary for policymakers

Call Number: [EL]

Physical Description: 18p.