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Synthesis Report of the Sixth Assessment Cycle (AR6) of the Intergovernmental Panel on Climate Change (IPCC), was adopted by all member countries on 19 March 2023 at the 58th Session of the IPCC at Interlaken, Switzerland, provided an overview of the current state of knowledge regarding climate change, its widespread impacts and risks, and climate change mitigation and adaptation.The report integrates the main findings of the Sixth Assessment Report (AR6) based on contributions from the three Working Groups, and the three Special Reports. The report recognizes the interdependence of climate, ecosystems and biodiversity, and human societies; the value of diverse forms of knowledge; and the close linkages between climate change adaptation, mitigation, ecosystem health, human well-being and sustainable development, and reflects the increasing diversity of actors involved in climate action. The report reinforces the scientific view that CO2 is the primary GHG and needs to be drastically reduced. The report mentions that for every 1000 GtCO2 emitted by human activity, global surface temperature rises by 0.45°C (best estimate, with a likely range from 0.27 to 0.63°C). The remaining carbon budgets from the beginning of 2020 are 500 GtCO2 for a 50% likelihood of limiting global warming to 1.5°C and 1150 GtCO2 for a 67% likelihood of limiting warming to below 2°C. Reaching net zero CO2 or GHG emissions primarily requires deep and rapid reductions in gross emissions of CO2, as well as substantial reductions of non-CO2 GHG emissions. The Synthesis Report draws attention to the fact that the largest climate finance gaps are in developing countries and that accelerated financial support for developing countries from developed countries and other sources is a critical enabler to enhance mitigation actions and address inequities in finance, including its costs, terms and conditions and economic vulnerability to climate change for developing countries. The Synthesis Report echoes Prime Minister’s vision for “LiFE”, or Lifestyle for Environment, a global mass movement promoting environmentally friendly lifestyle to protect and preserve the environment. The report notes with high confidence that many options are available for reducing emission-intensive consumption, including through behavioral and lifestyle changes, with co-benefits for societal well-being.
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