On the recordNovember 13, 2013
I am here today for now the 50th time to urge my colleagues to wake up to what carbon pollution is doing to our atmosphere and our oceans. Once a week--50 weeks--every week. Why? Why do I do this? First, because it is real. It is very real. It is happening. Here is the change in average global surface temperature since 1970. It is pretty hard to deny. Of course, if you are a denier, you will look at it and you will see from the same data that it stopped. The denier who tells you it stopped won't tell you that it stopped five times earlier on the way up. In fact, you could say that climate change has stopped six times since the 1970s, and even went down, but it didn't stay stopped long. Look at the linear trend for the whole data set from 1970 to 2013. No one can deny over this period the Earth is warming. This decade was warmer than the last, which was warmer than the one before that, which was warmer than the one before that. Let's look at NASA's entire historic surface temperature record going back to the 19th century. Listen to what University of California Berkeley physics professor Richard Muller has to say about the temperature record. The frequent rises and falls, virtually a stairstep pattern, are part of the historic record, and there is no expectation that they will stop, whatever their cause. . . . [T]he land temperature record . . . is full of fits and starts that make the upward trend vanish for short periods.…





