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In 2004, the geologist and historian of science Naomi Oreskes analyzed the abstracts of 928 scientific papers on "global climate change" published between 1993 and 2003. 75% had either explicitly expressed support for the scientific consensus on anthropogenic climate change, or had accepted it as a given and were focused on evaluating its ...
RCP 2.6 is a "very stringent" pathway. [6] According to the IPCC, RCP 2.6 requires that carbon dioxide (CO 2) emissions start declining by 2020 and go to zero by 2100.It also requires that methane emissions (CH 4) go to approximately half the CH 4 levels of 2020, and that sulphur dioxide (SO2) emissions decline to approximately 10% of those of 1980–1990.
A climate change scenario is a hypothetical future based on a "set of key driving forces". [ 1 ] : 1812 Scenarios explore the long-term effectiveness of mitigation and adaptation . [ 2 ] Scenarios help to understand what the future may hold.
2024 was the first year to pass a milestone set by world leaders to try to keep the worst impacts of climate change at bay, scientists say.
Numerical climate models (or climate system models) are mathematical models that can simulate the interactions of important drivers of climate. These drivers are the atmosphere, oceans, land surface and ice. Scientists use climate models to study the dynamics of the climate system and to make projections of future climate and of climate change ...
The climate scientist James Hansen, who was among the first to publicly warn the world about climate change, said last year the 1.5 goal was “deader than a doornail.”
‘Worst-case’ climate change scenarios with up to 4ºC or 5ºC of warming are no longer possible, a new study has suggested.
In addition to referring to the IPCC as "[the] world's best climate scientists", they stated that climate change is happening as "the result of emissions since industrialization and we have already set in motion the next 50 years of global warming – what we do from now on will determine how worse it will get."