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Climate change can also be used more broadly to include changes to the climate that have happened throughout Earth's history. [38] Global warming—used as early as 1975 [39] —became the more popular term after NASA climate scientist James Hansen used it in his 1988 testimony in the U.S. Senate. [40] Since the 2000s, climate change has ...
Drivers of climate change from 1850–1900 to 2010–2019. Future global warming potential for long lived drivers like carbon dioxide emissions is not represented. The scientific community has been investigating the causes of climate change for decades.
Measurements and statistics. "Vital Signs of the Planet" as presented by NASA on 31 December 2019 [2] NOAA 's National Centers for Environmental Information (NCEI) and the WMO reported that 2019 was the second hottest year in its 140-year climate record—0.04°C (0.07°F) cooler than 2016—with the U.K. Met Office ranking it among the three ...
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 ...
As of 31 March 2020, 186 parties (185 countries plus the European Union) had communicated their first NDCs to the United Nations Framework Convention on Climate Change Secretariat. A report by the UN stated in 2020 that: "the world is way off track in meeting this target at the current level of nationally determined contributions."
The 2019 UN Climate Action Summit was held at the headquarters of the United Nations in New York City on 23 September 2019. [1] [2] [3] The UN 2019 Climate Summit convened on the theme, "Climate Action Summit 2019: A Race We Can Win. A Race We Must Win." [4] The goal of the summit was to further climate action to reduce greenhouse gas emissions ...
A 2019 review of scientific papers found the consensus on the cause of climate change to be at 100%, [ 6] and a 2021 study concluded that over 99% of scientific papers agree on the human cause of climate change. [ 7] The small percentage of papers that disagreed with the consensus often contained errors or could not be replicated.
Deforestation and climate change. Deforestation in the tropics – given as the annual average between 2010 and 2014 – was responsible for 2.6 billion tonnes of CO 2 per year. That was 6.5% of global CO 2 emissions. Deforestation is a primary contributor to climate change, [ 1][ 2] and climate change affects the health of forests. [ 3]