Looks like MIT is joining the global conspiracy on global warming.
Temperatures Could Rise Twice As Much
Posted by Keith Johnson
blogs.wsj.com
The outlook for global warming if the world continues its current path is a lot worse than it was just a few years ago, says new research from MIT, making it even more urgent to put in place strong policies to curb greenhouse-gas emissions.
The new MIT study, like all climate studies a sophisticated computer model, projects a median temperature rise of 5.2 degrees centigrade in 2100. That’s double the 2.4 degree increase projected in a 2003 study, MIT said. The range of temperature increases that are 90% likely stretches from 3.5 to 7.4 degrees centigrade.
Lots of little things add up to make the difference: Better economic modeling, including energy use around the world; stripping out the cooling effect of volcanic eruptions; adding the warming effect of accumulating soot, and so forth.
Assuming governments take action to curb greenhouse-gas emissions, temperature rises would be limited to between 2 and 3 degrees, the study found—similar to earlier projections. That is, the risks of not taking action seem to have grown substantially, said lead researcher Ronald Prinn. “This increases the urgency for significant policy action,” he said. |
