Forests around the world are absorbing more carbon dioxides from the atmosphere, but they still can not keep the volume of global gas heated by human activity, it has found a new study.
"Full forestry is taking shape to absorb CO2 emissions," said Benjamin Gaubert, senior author of the study and scientist at the Colorado National Scientific Research Center (NCAR). "This means that the general forest helps mitigate climate change or help at least reduce the effects of carbon emissions on the atmosphere."
The study, published in the journal BiogeosciencesFor this reason, forest growth is reinforcing, as atmospheric carbon concentrations increase and, therefore, CO2 emissions that emit more air. However, the concentration of carbon dioxide in the atmosphere continues to increase to a total emission of emissions of humidity by the forests in 2018 to 38,100 million tonnes.
Research has analyzed investment models of atmospheric investment in research organizations around the world. These combined with surface observations to calculate carbon fluctuations in the northern and southern forests and verify airborne observations. In the analysis supercomputers relied on simulations of climate models.
Scientists began with data on CO2 emission levels from around the world since 1985. From then on, models of different models of the world were established to measure the CO2 emitted and sunk in different regions of the world.
While forests in the North, while taking more massive land, account for most CO2 absorption, research suggests that tropical forests in the global South are more efficient in capturing carbon.
"We found that the movements of the tropic carbon were almost neutral," said Gaubert. "That was interesting to us, since deforestation and rapid urbanization are considered to be more carbon emissions. [the forests] There were no carbon sequenced faster than before. "
Gaubert's forests in the tropics were probably more effective in extracting carbon from the northern forests due to good growth conditions, such as annual sunlight and more rainfall. According to Gaubert, 30% of annual carbon emissions are captured by the clear growth of the forest.
"The tropics of the South and the northern temperate forests take more carbon than in the past, but those who receive tropical forests are a particularly interesting revelation for the group," he said.
The way forward
According to the study, the world's forests are growing increasingly concentrated on the atmospheric CO2 concentrations, Gaubert said that there is "a lot of uncertainty" about climate change in its global and long-term carbon capacity.
A study published in the journal published in January NatureResearchers have found that instead of absorbing more greenhouse gas emissions, plants and land can be less absorbed when the climate is heated at a specific point.
"No [is] It is still a huge number of models and uncertainty, "said Gaubert. "This study adds to the scientific debate that the impact of atmospheric CO2 concentrations may have on larger forests and their ability to be carbon sinks or sources."
The research has been financed by the National Science Foundation, NASA, the Copernicus Atmosphere Monitoring Service of the EU, the Environmental Research and Technology Development Fund of the Ministry of the Environment, the Environment, Climate Change Canada and the Canadian Space Agency.
According to Global Forest Watch surveys, tropical forest losses today account for 8% of world emissions every year. Compared to the biggest global emitters, tropical deforestation would be the third largest global warming contributor if it was considered throughout the country.
Following the 2015 Paris Convention, forest emissions are becoming increasingly severe because forest fires are firming, as more and more climate is growing – or farming and pasture.
The author of the researcher Britton Stephens has said that the discovery of a concern for not only forests around the world but also for the tropics. "The forests that are not cut in the tropics are taking a lot of carbon," he said.
Loss of tropical forests threatens global biodiversity. Although less than 2% of world surface area, tropical forests estimate 50% of underground life.
This report first appeared in Mongabay; The original version of the story can be seen here