Dr. James Hansen is the Director of the Goddard Institute for Space Studies. Dr. Hansen is right up there with Al Gore, Michael Mann and the Climategate CRU on the list of people helping the UN to swindle the United States and other western democracies out of trillions of dollars through his promotion of the Anthropogenic Global Warming fraud.
Hansen kind of got the ball rolling in 1988 with his publication of a climate model that predicted dire global warming over the next 20 years if mankind did not stop burning fossil fuels… Hansen et al. 1988.
Hansen constructed three scenarios… “Scenario A assumes continued exponential trace gas growth, scenario B assumes a reduced linear linear growth of trace gases, and scenario C assumes a rapid curtailment of trace gas emissions such that the net climate forcing ceases to increase after the year 2000.” ….
Hansen’s scenarios “A” and “B” predicted a temperature anomaly about 1.0°C by 2009. Scenario “C” predicted an anomaly of about 0.7°C by 2009. Since Hansen’s publication, atmospheric CO2 levels have tracked Scenario “A” and CH4 levels have tracked Scenario “C”. Even though CH4 is a more potent greenhouse gas, it accounts for only a tiny fraction of the greenhouse effect:
CO2 is the “Big Kahuna”. Even if CH4 has 20X the greenhouse effect of CO2. 1800 ppb is 0.46% of 390 ppm…20 X 0.46% = 9.2%. At most, CH4 accounts for only about 10% of the greenhouse effect of CO2 in Earth’s current atmosphere.
So, according to Hansen’s 1988 predictions, the global temperature anomaly should be about 90% of the way from Scenario “C” to Scenario “A”… ~0.97°C. In reality, the global temperature anomaly is about half of what Hansen predicted for a similar rise in greenhouse gases.
The actual warming has been slightly less than Hansen’s Scenario C…
“In scenario C the CO2 growth is the same as scenarios A and B through 1985; between 1985 and 2000 the annual increment is fixed at 1.5 ppmv/yr; after 2000, CO2 ceases to increase, its abundance remaining fixed at 368 ppmv.”
In most branches of science, when experimental results falsify the original hypothesis, scientists discard or modify the original hypothesis. In Hansen’s case, he just pitches the story with zealotry rarely seen outside of lunatic asylums…
Much more HERE (See the original for links, graphics etc.)