Climate change caused by mankind will release extra heat-trapping gases stored in nature into the atmosphere, a study has shown.
But the knock-on effect of the additional carbon dioxide — stored in soils, plants and the oceans — on top of industrial emissions building up in the atmosphere will be less severe than suggested by some recent studies, they said.
- Celebrity deaths 2018: All the stars we lost too soon 45 Pictures
- 10 finalists for TIME Person of the Year 2018 11 Pictures
The data, based on natural swings in temperatures from 1050-1800, indicated that a rise of one degree Celsius would increase carbon dioxide concentrations by about 7.7 parts per million in the atmosphere.
The good news: That is far below recent estimates of 40 ppm, which would be a much stronger boost to feared climate changes such as floods, desertification, wildfires, rising sea levels and more powerful storms, they said.