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by on August 7, 2012

Climate Denial Crock of the Week

Above, the most recent “This is Not Cool” drought update.

The Daily Climate:

The first scientist to alert Americans to the prospect that human-caused climate change and global warming was already upon us was NASA climatologist James Hansen. In a sweltering Senate hall during the hot, dry summer of 1988, Hansen announced that “it is time to stop waffling…. The evidence is pretty strong that the [human-amplified] greenhouse effect is here.”

At the time, many scientists felt his announcement to be premature. I was among them.

I was a young graduate student researching the importance of natural – rather than human-caused – variations in temperature, and I felt that the “signal” of human-caused climate change had not yet emerged from the “noise” of natural, long-term climate variation. As I discuss in my book, The Hockey Stick and the Climate Wars, scientists by their very nature tend to be conservative…

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