The world can still avoid dangerous global warming if it acts fast
Emitting carbon dioxide at current rates will soon push Earth’s temperature up by 2 degrees Celsius. Here’s how to make the calculation yourself
The rate of global temperature rise mayhave hit a plateau, but a climate crisis still looms in the near future
Editor's note: The following is a response by climatologist Michael E. Mann to a Q&A article that appeared in the June 2011 issue of Scientific American , which became available to readers in May.