Keeling collected air samples in flasks like this to analyze CO2.
Charles David Keeling
Keeling’s da proved a clear ta between huma link n activity and global warm alerting politicia ing, ns the problem. to
the wo
rl
Iconic graph In 1958, Keeling began measuring CO2 levels at the South Pole and at the summit of the Mauna Loa volcano in Hawaii. Tracking his data on a graph, known as the KEELING CURVE, he discovered that the levels rose each year. This led to warnings about how rising CO2 levels could lead to a catastrophic increase in Earth’s temperature. The Keeli CO2 levels ng Curve plots cha ng in Earth’s atmosphe ing re.
ntration
he change w d… o
d
H
During the 1950s, American Charles David Keeling designed instruments for measuring CARBON DIOXIDE (CO2 ) levels in Earth’s atmosphere. At the time, nobody knew whether CO2 – released by the burning of fossil fuels in factories and through the use of cars – ended up in the atmosphere or not.
The CHEMIST who measured carbon dioxide levels in Earth’s atmosphere and raised the alarm over the planet's rising temperature
CO2 conce
Fossil fuel debate
Year
47
