Future Climate Scenarios (IMAGE) Colorado State University Caption The pie charts show relative contributions to global warming divided into regions of the world. The enlargements represent the growth of overall cumulative global radiative forcing. CRF is cumulative radiative forcing. RCP is representative concentration pathway, or a modeled emissions scenario based on prior inputs. RCP 2.6 is roughly what was agreed upon during the 2015 Intercontinental Panel on Climate Change, the "Paris Agreement," in which nations collectively agreed to limit global warming to 1.5 degrees Celsius this century. RCP 8.5 is business as usual, with continued increasing emissions. Credit A.R. Ravishankara/Colorado State University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.