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The loss of this ice sheet would take between 2,000 and 13,000 years, [182] [183] although several centuries of high greenhouse emissions could shorten this time to 500 years. [184] A sea-level rise of 3.3 m (10 ft 10 in) would occur if the ice sheet collapses, leaving ice caps on the mountains, and 4.3 m (14 ft 1 in) if those ice caps also ...
English: Carbon dioxide emissions by source since 1880 as calculated for the 2021 Global Carbon Budget. Carbon dioxide generated by land use changes (deforestation) has been added to as coal, oil, and natural gas consumption have each ramped up in turn. See easy access to source data here.
In the United States, power generation was the largest source of emissions for many years, but in 2017, the transportation sector overtook it as the leading emissions source. As of that year, the breakdown was transportation at 29%, followed by electricity generation at 28% and industry at 22%.
The following table lists the 1970, 1990, 2000, 2010, 2020, 2021, 2022, and 2023 annual GHG [n 1] emissions estimates (in kilotons of CO 2 equivalent per year) along with a list of calculated emissions per capita (in metric tons of CO 2 equivalent per year). The data include carbon dioxide, methane and nitrous oxide from all sources, including ...
The atmospheric levels of carbon dioxide are the highest they have been in at least 2 million years, [1]: 8 if not 3.2 million years. [ 2 ] : 11 The atmospheric levels of two other major greenhouse gases, methane and nitrous oxide , are the highest they have been in at least the past 800,000 years.
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The following table lists the annual CO 2 emissions estimates (in kilotons of CO 2 per year) for the year 2023, as well as the change from the year 2000. [4] The data only consider carbon dioxide emissions from the burning of fossil fuels and cement manufacture, but not emissions from land use, land-use change and forestry.
The sharp acceleration in CO 2 emissions since 2000 to more than a 3% increase per year (more than 2 ppm per year) from 1.1% per year during the 1990s is attributable to the lapse of formerly declining trends in carbon intensity of both developing and developed nations. China was responsible for most of global growth in emissions during this ...