A new study conducted by NASA has revealed that tropical forests are fighting against climate change by absorbing more CO2 in response to rising atmospheric levels of the greenhouse gas.

The CO2 generated by man-made emissions is being fed off by trees by a process known as carbon fertilization. During the process, trees remove CO2 from the air, which in turn helps them grow faster.

NASA mentioned that this study is the first to use a variety of models, technology, and data to create 'apples-to-apples' comparison carbon dioxide estimates between forests.

In order to determine the accuracy of the results, the researchers used computer models of ecosystem processes, inverse models of atmospheric concentrations, satellite images.

The findings indicated that the amount of CO2 absorbed by tropical forests is around 1.4 billion metric tons, which is more than half of the total 2.5 billion metric tons absorbed worldwide.

The findings also indicate that the absorption rate is very high in comparison to previous estimates. It is also more than the rate at which carbon dioxide is absorbed by forests in Canada, Siberia and other northern regions, called boreal forests

According to David Schimel, lead author of the study and member of NASA's Jet Propulsion Laboratory in California, an increase in the absorption rate of CO2 in tropical forests worldwide is good news as absorption rates of boreal forests are on decline.