“As for using proxy data to detect a man-made greenhouse effect, I don’t think we’re ever going to get to the point where we’re going to be totally convincing.” – Thomas Wigley, National Center for Atmospheric Research, (April 28, 1998) When did the “greenhouse signal” become recognized and “settled science”? Despite the 35th anniversary of … Continue reading In Search of the “Greenhouse Signal” in the 1990s (and when did they know?)