According to a new study by researchers from the Simon Fraser University Canada will not escape the warming of two degrees Celsius, even if zero greenhouse gas emissions were to be achieved.Under the best-case scenario (with zero greenhouse gas emissions) the global temperature would still continue to rise by about a quarter of a degree over a decade.
In their study researchers used an earth system climate model developed by the University of Victoria to study the impact of greenhouse gas and aerosol emissions on the global climate.
They have concluded that the widespread presence of aerosols in the Earth's atmosphere is effectively blocking solar radiation at this moment but once aerosol blanket is removed the global temperatures will rise significantly.
They have also concluded that the elimination of all emissions would lead to an additional short-term warming by 0.25 to 0.5 degrees. Earth's temperature would actually continue to rise by a by 0.25 to 0.5 degrees over the next 10 years and then it would begin to decrease by a few tenths of a degree, coming down to today's level after about a century.
Global warming will not have the same impact on all regions - mid to high latitude regions such as Canada, Alaska, northeastern Europe, Russia, and northern China will likely be mostly affected, with a warming of at least 2 ° C being unavoidable in those regions.
Professor Kirsten Zickfeld, an assistant professor of geography at the Simon Fraser University said that "two degrees increase is pretty significant, especially when you consider the global temperature was only five degrees colder than today's during the ice age."
