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It is developed in phases to foster the climate model improvements but also to support national and international assessments of climate change. A related project is the Atmospheric Model Intercomparison Project (AMIP) for global coupled ocean-atmosphere general circulation models (GCMs).
In common usage, climate changedescribes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sensealso includes previous long-term changes to Earth's climate. The current rise in global average temperatureis primarily caused by humansburning fossil fuelssince the Industrial Revolution. [3][4]Fossil fuel ...
The Sixth Assessment Report ( AR6) of the United Nations (UN) Intergovernmental Panel on Climate Change (IPCC) is the sixth in a series of reports which assess the available scientific information on climate change. Three Working Groups (WGI, II, and III) covered the following topics: The Physical Science Basis (WGI); Impacts, Adaptation and ...
Shared Socioeconomic Pathways ( SSPs) are climate change scenarios of projected socioeconomic global changes up to 2100 as defined in the IPCC Sixth Assessment Report on climate change in 2021. [2] They are used to derive greenhouse gas emissions scenarios with different climate policies. [3] [4] [5] The SSPs provide narratives describing alternative socio-economic developments. These ...
The Intergovernmental Panel on Climate Change ( IPCC) is an intergovernmental body of the United Nations. Its job is to advance scientific knowledge about climate change caused by human activities. [1] The World Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP) set up the IPCC in 1988. The United Nations endorsed the creation of the IPCC later that year. [2 ...
Global Climate Action, originally known as Non-state Actor Zone for Climate Action (NAZCA), is a web portal launched in 2014 by the United Nations Framework Convention on Climate Change (UNFCCC). The purpose of the website is to provide information about climate action around the globe.
Scientific consensus on climate change Observed global warming: Global average temperature data from various scientific organizations show substantial agreement concerning the progress and extent of global warming: pairwise correlations for long-term datasets (1850+ and 1880+) exceed 99.1%.
The Roundtable had five objectives: Improve global consensus on the science, technology, economics, and policy issues of anthropogenic climate change. Review technology and policy proposals for mitigating climate change while meeting global energy demand. Support research and prototypes of technologies and policies that address climate change.