By Christopher Monckton of Brenchley
James Hansen is often debited with having stirred up so much alarm with his notorious 1988 prediction of runaway global warming in front of the U.S. Senate that IPeCaC was hastily founded later that year, so as to Save The Planet.
His prediction ran to 2020. How, then, did fantasy-land compare with more than two decades of sober, observed reality? The graph, zeroed so that the 1988 HadCRUT4 observed anomaly lies between Hansen’s three scenarios, shows that observed warming was closest to Hansen’s Scenario C.
However, the assumption underlying Scenario C is that everyone would be so scared following Hansen’s Senate testimony that what is now called “net-zero” would be achieved by 2000. Well, it wasn’t. And it won’t be, even by 2050. The chief reason is discernible in the Texas electricity grid collapse.
The Lone Star State, which ought to have had more common sense, decided that once it had carpeted the state with windmills (14th-century technology to fail to solve a 21st-century non-problem) and solar panels (produced by slave labor in China) it could reduce its dispatchable thermal grid capacity.
However, as any grid manager will tell you, you can’t do that. Not the least of the reasons why unreliables are so cripplingly expensive is that it is necessary to maintain the entire pre-existing grid regardless of how many unreliables are bolted on to it. Unreliables, therefore, inflict not only a deadweight cost but also a deadweight surplus capacity to the grid, to say nothing of the costly instability caused by giving unreliables precedence over thermal in meeting demand.
Texas took just 4 Gigawatts of reliables offline. But then, when all the unreliables failed during peak demand in freezing weather, there was not enough dispatchable electricity to keep the grid alive.
Hansen’s business-as-usual scenario A is now universally recognized, even among the Thermageddonites, to have been a baseless and absurd exaggeration. It predicts two or three times as much warming as has happened. As the chart below shows, notwithstanding trillions spent, CO2 emissions have exceeded IPeCaC’s business-as-usual emissions scenario in 1990, so the failure of the world to warm at anything like the Scenario A rate cannot be attributed to emissions reduction.
Yet it is on exaggerations such as Scenario A that the global-warming scam was founded, and it is on such exaggerations that it is maintained – for now, but perhaps not for much longer.