Skip to main content


Climate Change Around the World

Written on . Posted in .

IPCC reportThe Intergovernmental Panel on Climate Change (IPCC) is the leading international body for the assessment of climate change. It was established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988 to provide the world with a clear scientific view on the current state of knowledge in climate change and its potential environmental and socio-economic impacts.

In 2013 and 2014, the IPCC released its Fifth Assessment Report (AR5) on Climate change. AR5 provides a clear and up to date view of the current state of scientific knowledge relevant to climate change. It consists of three Working Group (WG) reports and a Synthesis Report (SYR). The three WG reports cover (1) The Physical Science Basis, (2) Impacts, Adaptation, and Vulnerability, and (3) Mitigation of Climate Change.

Climate Change in the United States

Written on . Posted in .

NCA reportThe National Climate Assessment summarizes the impacts of climate change on the United States, now and in the future.

A team of more than 300 experts guided by a 60-member Federal Advisory Committee produced the report, which was extensively reviewed by the public and experts, including federal agencies and a panel of the National Academy of Sciences.

Key Conclusions from the 2009 Reports

Written on . Posted in .

Summarized here are 18 statements from two recent scientific reports on global warming and climate change.  The reports are:

Global Climate Change Impacts in the United States (2009)

Presenting the latest scientific consensus report on U.S. climate change impacts, this report by the U.S. Global Change Research Program presents inter-agency findings by a long list of experts enlisted by the U.S. Government (cited here as “US Impacts, 2009”).  All quotes below from this report are from “Key Findings,” pg. 12.

Copenhagen Diagnosis Updating the Latest Global Climate Science (2009)

This was written for policy-makers, stakeholders, the media and the broader public to synthesize the most policy-relevant climate science.  It relies on the 100s of papers published since the editorial cut-off for the Nobel-Prizing-Winning “Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) (2007).”  All quotes below from this report are from the “Executive Summary,” (cited here as “Copenhagen Diagnosis 2009”).

Receive the latest news from ClimateWise

Sign Me Up

ClimateWise grows its programs through the generous support of caring people who believe we can and must do a better job addressing climate change for our children and those who will follow.

Donate Now