by Morley Evans
 |
| Freeman Dyson |
https://www.youtube.com/watch?v=BQHhDxRuTkI
Climate change
Freeman Dyson thinks that anthropogenic global warming exists and that one of its main causes is the increase of carbon dioxide in the atmosphere resulting from the burning of fossil fuels.[61] He has said that in many ways increased atmospheric carbon dioxide is beneficial,[62] and that it is increasing biological growth, agricultural yields and forests.[63] He believes that existing simulation models of climate change fail to account for some important factors and that the results thus contain too great a margin of error to reliably predict future trends.[61][64]
Dyson's views on global warming have been criticized.[25] Climate scientist James Hansen said that Dyson "doesn't know what he's talking about... If he's going to wander into something with major consequences for humanity and other life on the planet, then he should first do his homework—which he obviously has not done on global warming."[25]:140 Dyson replied that "[m]y objections to the global warming propaganda are not so much over the technical facts, about which I do not know much, but it's rather against the way those people behave and the kind of intolerance to criticism that a lot of them have."[65]
In 2008 Dyson endorsed the now common usage of "global warming" as synonymous with global anthropogenic climate change,[66] but argued that political efforts to reduce the causes of climate change distract from other global problems that should take priority.[67]
Since originally taking interest in climate studies in the 1970s, Dyson has suggested that carbon dioxide levels in the atmosphere could be controlled by planting fast-growing trees. He calculates that it would take a trillion trees to remove all carbon from the atmosphere.[68][25] In a 2014 interview, he said, "What I'm convinced of is that we don't understand climate ... It will take a lot of very hard work before that question is settled."[4]
Dyson is a member of the academic advisory council of the Global Warming Policy Foundation, a climate sceptic think-tank chaired by Nigel Lawson.[69][70] He has compared belief in climate change to religion.[71]
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