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A climate target, climate goal or climate pledge is a measurable long-term commitment for climate policy and energy policy with the aim of limiting the climate change. Researchers within, among others, the UN climate panel have identified probable consequences of global warming for people and nature at
The four SRES scenario families [8] [9] [10] of the Fourth Assessment Report vs. projected global average surface warming until 2100 AR4 (Summary; PDF) More economic focus: More environmental focus: Globalisation (homogeneous world) A1 rapid economic growth (groups: A1T; A1B; A1Fl) 1.4 − 6.4 °C: B1 global environmental sustainability 1.1 − ...
The treaty also states that preferably the limit of the increase should only be 1.5 °C (2.7 °F). To achieve this temperature goal, greenhouse gas emissions should be reduced as soon as, and by as much as, possible. [2] To stay below 1.5 °C of global warming, emissions need to be cut by roughly 50% by 2030. This figure takes into account each ...
Avoiding this future warming will require a large and rapid reduction in global greenhouse gas emissions. The ongoing warming will increase risks and stresses to human societies, economies, ecosystems, and wildlife through the 21st century and beyond, making it imperative that society respond to a changing climate.
International goals for mitigating climate change like the Paris Agreement are based on studying these scenarios. For example, the IPCC Special Report on Global Warming of 1.5 °C was a "key scientific input" into the 2018 United Nations Climate Change Conference. [4]
[72] [73] For example, the UNFCCC invited the IPCC to prepare a report on global warming of 1.5 °C. The IPCC subsequently released the Special Report on Global Warming of 1.5 °C (SR15) in 2018. [74] The report showed that it was possible to keep warming below 1.5 °C during the 21st century. But this would mean deep cuts in emissions.
In order to stay under 1.5 °C of global warming, carbon dioxide (CO₂) emissions from G20 countries need to decline by about 45% by 2030 and attain net zero in 2050. [18] To be able to meet the 1.5 °C or even 2 °C, which is the maximum set by the Paris Agreement , greenhouse gas emissions must start to fall by 7.6% per year starting on 2020 ...
To stay below 1.5 °C of global warming, emissions need to be cut by roughly 50% by 2030. This figure takes into account each country's documented pledges. [9] After the Paris Agreement was signed, global emissions continued to rise rather than fall. [7] 2024 was the hottest year on record, with a global average temperature above 1.5 °C. [7]