Before revision: Human activities, such as the burning of fossil fuels and changes in land use (see below), release large amounts of carbon to the atmosphere, causing concentrations in the atmosphere to rise.See also: , in upright=1.35|The Keeling Curve shows the long-term increase of atmospheric carbon dioxide () concentrations from 1958–2018.
After revision: Human activities, such as the burning of fossil fuels and changes in land use (see below), release large amounts of carbon to the atmosphere, causing concentrations in the atmosphere to rise.See also: , in upright=1.35|The Keeling Curve shows the long-term increase of atmospheric carbon dioxide () concentrations