To: Brumar89 who wrote (895444 ) 10/21/2015 2:46:03 PM From: Brumar89 Read Replies (1) | Respond to How could Exxon researchers have known about global warming before the IPCC? Exxon knew all about climate change in 1977 say warmists. That's 11 years before the IPCC was founded. Back then, the climate authorities were still pushing the peril of global cooling. And when the IPCC was founded, it took a long time to work itself up to its present alarmism. For example, in 1990 the IPCC said they weren't sure of it: 1990 Summary for Policy Makers on the scientific basis of climate change, the IPCC observed that the size of the 0.3 to 0.6 degrees Centigrade warming observed over the previous 100 years was broadly consistent with the predictions of climate models but was also of the same magnitude as natural climate variability. The IPCC observed that the size of the 0.3 to 0.6 degrees Centigrade warming observed over the previous 100 years was . . . of the same magnitude as natural climate variability. A global warming of larger size has almost certainly occurred at least once since the end of the last glaciation without any appreciable increase in greenhouse gases. Because we do not understand the reasons for these past warming events, it is not yet possible to attribute a specific proportion of the recent, smaller warming, to an increase of greenhouse gases” (emphasis added). In case anyone missed the message, in Chapter 8, the IPCC delivered an implicit rebuke to James Hansen, the excitable NASA scientist, who had told the Senate two years earlier, in 1988, that global warming had begun. [ So how did Exxon KNOW all about climate catastrophe 13 years BEFORE this? ] scientists working in this field cannot at this point in time make the definitive statement: “Yes, we have now seen an enhanced greenhouse effect.”
