ScienceDaily: The map above shows the predicted global warming impact of all anthropogenic emissions, including biomass burning, on global near-surface air temperature since 1850. The map below shows the observed change in global near-surface air temperature since 1900. The average modeled increase in temperature since 1850 is 1.0 K. The average observed increase since 1900 is 0.92 K. Most increases in temperature occur over the Arctic, which is melting quickly. Credit: Courtesy of Mark Jacobson [Click to enlarge...