Researchers have come up with a way to model how different parts of the world could respond to climate change in the future. Based on the modeling results, they suggest that dramatic changes in their weather conditions will occur in some areas. Because of the increase in greenhouse gases, the Amazon rainforest will dry out in the future, while the forests of Africa and Indonesia will become wetter. The shift in global rainfall is partly dependent on the response of the forests to high carbon dioxide levels. Researchers suggest that the interaction between rainforests and increasing carbon levels contributes to changes in tropical rain asymmetric patterns.
"People tend to believe that most of the heat interference in the oceans will cause wind patterns to change," said James Randerson of the University of California at Irvine. "We've found that large-scale changes in precipitation are partly due to how tropical forests react to the abundance of carbon dioxide that humans release into the atmosphere, especially in dense forests in the Amazon and across Asia." 1
"Trees and forests evaporate with higher levels of CO2 less moisture in the air, leaving themselves clouds over the Amazon, "says researcher Gabr iel Kooperman. "And instead of raining (along with the usually abundant clouds and) over the forest, steam from the Atlantic Ocean blows across the South American continent into the Andes, where it falls rainily on the mountain slopes, with limited use in the rainforest in the Amazon basin. "
The situation in Amazon differs significantly from Central Africa and a vast area between the Pacific and Indian Ocean, which includes Malaysia, Papua New Guinea and the Indonesian archipelago. Over these forests, an increase in precipitation is predicted, as they are surrounded by moist air over warm ocean surfaces.
"They will have a stronger contrast to heating over the islands compared to the nearby ocean, and will thus enhance a natural sea breeze and draw in more moisture from these neighboring ocean systems to increase rainfall over the forests." Says Randerson
The researcher used a combination of simulations provided in the context of the coupled model comparison project Phase 5 and the model of the Earth system to create future projections.