Comment

Feb 20, 2018
I'd have more respect for this documentary if it presented a rebuttal of a book such as "The Great Global Warming Blunder" by Dr Roy Spencer. Spencer is a climate scientist who works for the NOAA, he is not a propagandist in my opinion; he presents his evidence calmly and rationally and points out that computer models of climate change, however sophisticated, are nevertheless only as accurate as the assumptions of those who programmed them. Spencer backs his case with compelling evidence collected over many years of intense, specialized, scientific work. It is a credit to the NOAA that they have not muzzled Dr Spencer or forced him out. Anthropogenic climate change is a theory. A good theory, as Stephen Hawking said in "A Brief History of Time" is a theory that not only explains all the observed phenomena with zero contradictions, but one that makes accurate predictions. Anthropogenic global warming theories have not explained the mini ice age nor the medieval warming period - shifts in earth's climate that occurred during an epoch when carbon emissions were a tiny fraction of the levels we emit today. Even conscientious scientists like James Lovelock were eventually forced to admit that their predictions of runaway climate catastrophe were "alarmist and wrong". There is a false dichotomy at work here, if you don't buy into the Al Gore version of reality you automatically become a "climate change denier" (note the subtle tie-in to "holocaust denier". I believe that many of us would be better described as "climate change skeptics". We want more evidence. Not enough people have protested president Trump's decision to shut down the climate budget observations of the Deep Space Climate Observation (DSCVR) satellite, relegating this important source of data to merely an early warning system for detecting coronal mass ejections from the sun and protecting our communications satellites and electricity grid from damage.