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A related phenomenon driven by climate change is woody plant encroachment, affecting up to 500 million hectares globally. [231] Climate change has contributed to the expansion of drier climate zones, such as the expansion of deserts in the subtropics. [232] The size and speed of global warming is making abrupt changes in ecosystems more likely ...
Main sources of global methane emissions (2008-2017) according to the Global Carbon Project [ 40] Methane emissions come from livestock, manure, rice cultivation, landfills, wastewater, and coal mining, as well as oil and gas extraction. [ 41] Nitrous oxide emissions largely come from the microbial decomposition of fertiliser.
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.
For a fair comparison, emissions should be analyzed in terms of the amount of CO 2 and GHG per capita. [ 8] In 2022, China's GHG per capita emissions levels (10.95) are almost 60 percent those of the United States (17.90) and less than a sixth of those of Qatar (67.38 - the country with the highest emissions of GHG per capita in 2022). [ 9][ 7 ...
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]
In 2022, the Intergovernmental Panel on Climate Change (IPCC) released its Sixth Assessment Report on climate change. It warned that greenhouse gas emissions must peak before 2025 at the latest and decline 43% by 2030 to have a good chance of limiting global warming to 1.5 °C (2.7 °F).
The Climate Change Performance Index ( CCPI) is a scoring system designed by the German environmental and development organisation Germanwatch e.V. to enhance transparency in international climate politics. On the basis of standardised criteria, the index evaluates and compares the climate protection performance of 63 countries and the European ...
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 ...