flowerhouse greenhouse

This animation depicts global surface warming as simulated by the Community Climate System Model (CCSM), version three. It shows the temperature anomalies relative to the end of the 19th century, both over the entire globe and as a global average. The model shows the temporary cooling effects during the 5 major volcanic eruptions of this time period, and then the model’s estimates of warming under the different scenarios; Commitment (no changes in greenhouse gases relative to the year 2000), B1 (CO2 level stabilizes at 550 ppm), A1B (CO2 stabilizes at 720 ppm) and A2 (CO2 increases to 840 ppm by the year 2100). Credit: National Science Foundation / Department of Energy