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Atmospheric carbon dioxide (CO 2) concentrations from 1958 to 2023. The Keeling Curve is a graph of the annual variation and overall accumulation of carbon dioxide in the Earth's atmosphere based on continuous measurements taken at the Mauna Loa Observatory on the island of Hawaii from 1958 to the present day.
Carbon dioxide has unique long-term effects on climate change that are nearly "irreversible" for a thousand years after emissions stop (zero further emissions). The greenhouse gases methane and nitrous oxide do not persist over time in the same way as carbon dioxide. Even if human carbon dioxide emissions were to completely cease, atmospheric ...
Ralph Franklin Keeling (born 1957 [1]) is a professor at Scripps Institution of Oceanography.He is the Principal Investigator for the Atmospheric Oxygen Research Group at Scripps and is the director of the Scripps CO 2 Program, [2] the measurement program behind the Keeling curve, which was started by his father Charles David Keeling in 1958.
Of the increased amounts of carbon dioxide that are introduced to the atmosphere each year, approximately 80% are from the combustion of fossil fuels and cement production. The other ~20% originate from land use change and deforestation. [18] Because gaseous carbon dioxide does not react quickly with other chemicals, the main processes that ...
English: This figure shows the history of atmospheric carbon dioxide concentrations as directly measured at Mauna Loa, Hawaii.This curve is known as the Keeling curve, and is an essential piece of evidence of the man-made increases in greenhouse gases that are believed to be the cause of global warming.
Charles David Keeling (April 20, 1928 – June 20, 2005) [1] [2] was an American scientist whose recording of carbon dioxide at the Mauna Loa Observatory [3] confirmed Svante Arrhenius's proposition (1896) of the possibility of anthropogenic contribution to the greenhouse effect and global warming, by documenting the steadily rising carbon dioxide levels.
Carbon dioxide liquid/vapor equilibrium thermodynamic data: Temp. °C P vap Vapor pressure kPa H liq Heat content liquid J/g H vap Heat content vapor J/g
Carbon dioxide is a chemical compound with the chemical formula CO 2. ... (also called the Keeling Curve). The rise in CO 2 over that time period is clearly visible.