RedOrbit Putting A Cap On CO2 Emissions Won't End Global Warming: Study RedOrbit The carbon dioxide content already present in the Earth's atmosphere would continue to cause warming for hundreds of years, even if the emissions were to suddenly stop...
As part of their research, the investigators created a simulation of Earth upon which carbon dioxide emissionssuddenly ceased after 1,800 billion tons of the greenhouse gas had entered the atmosphere. Within a millennium of this sudden CO2 shutoff, the carbon itself began to fade. Within 20 years, 40 percent of it had been absorbed by the planet’s oceans and landmasses, and 80 percent of it had been soaked up after 1,000 years.
“By itself, such a decrease of atmospheric carbon dioxide should lead to cooling. But the heat trapped by the carbon dioxide took a divergent track,” the university said. “After a century of cooling, the planet warmed by 0.37 degrees Celsius (0.66 Fahrenheit) during the next 400 years as the ocean absorbed less and less heat.”
“While the resulting temperature spike seems slight, a little heat goes a long way here. Earth has warmed by only 0.85 degrees Celsius (1.5 degrees Fahrenheit) since pre-industrial times,” it added. “The Intergovernmental Panel on Climate Change estimates that global temperatures a mere 2 degrees Celsius (3.6 degrees Fahrenheit) higher than pre-industrial levels would dangerously interfere with the climate system.”