Editing IPCC Third Assessment Report (section)

===Synthesis Report===

The TAR Synthesis Report includes a summary of the TAR's main findings and uncertainties.<ref name="tar robust findings and key uncertainties">
{{citation
 | at=[http://www.grida.no/climate/ipcc_tar/vol4/english/015.htm Question 9]
 | title=Climate Change 2001: Synthesis Report
 | chapter=Summary for Policymakers
}}, in {{harvnb|IPCC TAR SYR|2001}}
</ref>  "Robust findings" of the TAR include:<ref name="tar robust findings and key uncertainties"/>
*Observed warming of the Earth's surface, attribution of observed warming to human activities, [[Global climate model#Projections of future climate change|projected increases]] in future global mean temperature, rising [[current sea level rise|sea level]]s, and increased frequency of [[heat wave]]s.
*Future warming will have both beneficial and adverse effects, but for higher levels of warming, adverse effects will predominate.
*Developing countries and poor persons are most [[Climate change vulnerability|vulnerable to climate change]].
"Key uncertainties" in the TAR include:<ref name="tar robust findings and key uncertainties"/>
*Estimated climate [[radiative forcing|forcings]] of natural climatic factors and anthropogenic [[aerosol]]s (e.g., sulfate, which is produced when sulfur-rich coal is burnt), future changes in [[greenhouse gas emissions|greenhouse gas (GHG) emissions]], and the role of [[climate change feedback|climate feedback]]s, which may amplify or reduce the magnitude of future climate change;
*Assigning probabilities to projections of changes in sea level and temperature, as well as uncertainties related to regional projections of climate change.