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Carbon dioxide (CO 2) is the main greenhouse gas resulting from human activities. It accounts for more than half of warming. Methane (CH 4) emissions have almost the same short-term impact. [ 5] Nitrous oxide (N 2 O) and fluorinated gases (F-gases) play a lesser role in comparison.
The US, China and Russia have cumulatively contributed the greatest amounts of CO 2 since 1850. [ 3] This is a list of sovereign states and territories by carbon dioxide emissions[ n 1] due to certain forms of human activity, based on the EDGAR database created by European Commission and Netherlands Environmental Assessment Agency.
It is one of several greenhouse gases in the atmosphere of Earth. The current global average concentration of carbon dioxide (CO 2) in the atmosphere is 421 ppm (0.04%) as of May 2022. [1] This is an increase of 50% since the start of the Industrial Revolution, up from 280 ppm during the 10,000 years prior to the mid-18th century.
The United States produced 5.2 billion metric tons of carbon dioxide equivalent greenhouse gas (GHG) emissions in 2020, [5] the second largest in the world after greenhouse gas emissions by China and among the countries with the highest greenhouse gas emissions per person. In 2019 China is estimated to have emitted 27% of world GHG, followed by ...
For a fair comparison, emissions should be analyzed in terms of the amount of CO 2 and GHG per capita. [10] Considering GHG per capita emissions in 2022, China's 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 ...
The US, China and Russia have cumulatively contributed the greatest amounts of CO 2 since 1850. [3] This is a list of sovereign states and territories by per capita carbon dioxide emissions [n 1] due to certain forms of human activity, based on the EDGAR database created by European Commission. The following table lists the 1970, 1990, 2005 ...
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