The Working Group II contribution to the IPCC Sixth Assessment Report assesses the impacts of climate change, looking at ecosystems, biodiversity, and human communities at global and regional levels. It also reviews vulnerabilities and the capacities and limits of the natural world and human societies to adapt to climate change.

UN scientists delivered a stark warning about the impact of climate change on people and the planet, saying that ecosystem collapse, species extinction, deadly heatwaves and floods are among the "unavoidable multiple climate hazards” the world will face over the next two decades due to global warming.

The Summary for Policymakers (SPM) provides a high-level summary of the understanding of the current state of the climate, including how it is changing and the role of human influence, and the state of knowledge about possible climate futures, climate information relevant to regions and sectors, and limiting human-induced climate change.

Land is already under growing human pressure and climate change is adding to these pressures. At the same time, keeping global warming to well below 2ºC can be achieved only by reducing greenhouse gas emissions from all sectors including land and food, the Intergovernmental Panel on Climate Change (IPCC) said in its latest report.

The 2006 IPCC Guidelines for National Greenhouse Gas Inventories (2006 IPCC Guidelines) which were published in 2006 provide methodologies for estimating national inventories of anthropogenic emissions by sources and removals by sinks of greenhouse gases.

Limiting global warming to 1.5 degrees would require rapid, far reaching and unprecedented changes in all aspects of society, the IPCC said in this new assessment. It compares the impact of global warming of 1.5 deg C and 2 deg C. It states that the world stands on the brink of failure when it comes to holding climate change to moderate levels and that there is only a decade to try and cut emissions.

This full version of the IPCC Fifth Assessment Report Climate Change 2014: Impacts, Adaptation, and Vulnerability released on 16 October 2014 provides the most comprehensive look to date at the widespread impacts and risks of climate change and the opportunities for response.

Climate Change 2014: Impacts,Adaptation, and Vulnerability is the second volume of the Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change (IPCC) — Climate Change 2013/2014 — and was prepared by its Working Group II.

This final volume of the three-part landmark report released by the IPCC shows that global emissions of greenhouse gases have risen to unprecedented levels and calls for emissions reductions from energy production and use, transport, buildings, industry, land use, and human settlements.

The final volume of three-part landmark report prepared by the Intergovernmental Panel on Climate Change (IPCC) shows that global emissions of greenhouse gases have risen to unprecedented levels and calls for emissions reductions from energy production and use, transport, buildings, industry, land use, and human settlements. Read the summary for policymakers of this report and more in this package.