What was happening to the atmospheric CO2 concentration between 1940 and 1980?
On the other hand, the temperature remained steady between 1940-1980, while the carbon dioxide concentration increased from 300 to 335 ppm. The most likely answer to this inconsistency is atmospheric aerosol.
What happened to Earth’s temperature as CO2 levels decreased?
When carbon dioxide concentrations drop, Earth cools, some water vapor falls out of the atmosphere, and the greenhouse warming caused by water vapor drops. At the same time that greenhouse gases have been increasing, average global temperatures have risen 0.8 degrees Celsius (1.4 degrees Fahrenheit) since 1880.
What happened to global temperatures from 1940 to 1970?
Global Dimming: The cooling between 1940 and 1970 was likely a result of industrial pollution that produced sunlight-blocking aerosols, a phenomenon known as global dimming. As industry ramped up across the globe, much air pollution was being spewed out of smoke stacks along with carbon dioxide.
What was the global temperature anomaly in 1940?
With an average temperature of 3.4 °C, 1940 was one of the warmest years of the twentieth century in Anchorage.
What would happen if CO2 decreased?
Decreased Temperatures Because carbon dioxide traps heat in the atmosphere, a lessening of atmospheric carbon dioxide concentrations would mean that more heat could escape into space. This would result in a net decrease in the Earth’s average temperature, assuming other factors remain the same.
How did carbon dioxide decrease?
Carbon dioxide levels decreased because of processes that included: dissolving in the oceans. use by plants for photosynthesis. formation of fossil fuels as plants died and their carbon compounds became locked up underground.
What caused the CO2 level to decrease?
Low CO2 levels can be caused by a number of conditions, including uncontrolled diabetes, hyperventilation, and certain medications. Chronically low CO2 levels may be associated with several health risks. Talk to your doctor to learn more about your test results.
How much CO2 was there in the atmosphere in 1940?
A conspicuous feature in the atmospheric CO2 record is a sta- bilization of CO2 concentration at around 310–312 ppm from 1940 to the early 1950s (Etheridge et al., 1996, Fig. 1).
How cold was the winter of 1942?
temperatures plunged to -40 degrees in places, freezing German tanks and equipment, shutting down diesel engines and freezing German soldiers who were not equipped with coats, hats, proper boots, gloves, or anything necessary to fight a winter campaign.