London - Sana
A recent study warned that a global warming of 2 degrees Celsius will release about 230 billion tons of carbon from the soil.
According to the Vez website, which publishes news of science, research and technology, it is estimated that 230 billion tons of carbon will be released when the temperature rises by two degrees Celsius, higher than pre-industrial levels, which is more than four times the total emissions from China and more than twice the emissions from the United States over the past year. The past 100 years.
Global soils contain two to three times more carbon than the atmosphere, and higher temperatures speed up the decomposition process, reducing the time carbon spends in the soil.
"Our study excludes the most extreme forecasts but nonetheless points to significant losses of carbon in the soil due to climate change due to climate change only at a temperature of 2 degrees Celsius, and this does not even include the loss of carbon in the deeper permafrost," said co-researcher Dr. Sarah Chadburn from the University of Exeter.
Because the soil carbon response to climate change is the largest area of uncertainty in understanding the carbon cycle in climate change projections, the researchers used a new combination of observational data and Earth system models that simulate the climate and carbon cycle and then predict climate change.
"We looked at how soil carbon is related to temperature in different locations on Earth to find out how sensitive it is to global warming," said lead researcher Rebecca Varney.
It is noteworthy that global warming is an increase in the average surface temperature in the world with an increase in the amount of carbon dioxide, methane and some other gases in the atmosphere, which contribute to heating the Earth's surface atmosphere in a phenomenon known as global warming.