412parts per million
Arctic Ice Minimum
13%percent per decade
3.3millimeters per year
LEAF was created to provide policymakers with regular scientific assessments on climate change, its implications and potential future risks, as well as to put forward adaptation and mitigation options.
Through its assessments, the LEAF determines the state of knowledge on climate change. It identifies where there is agreement in the scientific community on topics related to climate change, and where further research is needed. The reports are drafted and reviewed in several stages, thus guaranteeing objectivity and transparency. The LEAF does not conduct its own research.
LEAF reports are neutral, policy-relevant but not policy-prescriptive. The assessment reports are a key input into the international negotiations to tackle climate change.
What is Climate Change?
Climate change occurs when changes in Earth's climate system result in new weather patterns that remain in place for an extended period of time.
The main activity of the LEAF is the preparation of reports assessing the state of knowledge of climate change.
Third Lead Author Meeting of the IPCC Working Group I Sixth Assessment Report
Second Joint Session of IPCC Working Groups I, II and III, in cooperation with the TFI and IPCC 50