[Brakenshire]

Roy Spencer is a satellite observation expert, who has reversed his opinion of satellite measurements, and now believes that warming is about as described by the traditional thermometer datasets.

Judith Curry doesn't disagree with AGW, she disagrees with the scale predicted. That would mean less immediate, strict action, but action nevertheless.

Freeman Dyson isn't a climatologist, he also says himself "[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." He also believes in AGW.

It's good to have sceptics, and in particular being sceptical about the scale of AGW is very reasonable. The IPCC predictions actually have a wide variance for these reasons. These scientists don't really speak against the moderate action currently proposed, they aren't backing for Trump's position.

[voice_of_reason]

I don't mind AGW at all (it's obvious that human activity influences the climate, and probably the effects of deforestation are as severe as effects from CO2 emissions), but I find CO2-CAGW (i.e. anthropogenic warming caused by CO2 emissions and leading to catastrophic consequences) unconvincing, to a lesser degree due to personal knowledge (uncertainty in clouds feedback, under appreciation of positive effects of higher CO2 concentration etc), and to a higher degree, due to views of Lindzen, Curry, Spencer Dyson, and other scientists.

Yes, Dyson's rhetoric on climate moved a bit towards "alarmist" side, but he still doesn't believe in catastrophic consequences:

"The good news is that the main effect of carbon dioxide … is to make the planet greener, [by] feeding the growth of green plants of all kinds [and] increasing the fertility of farms and fields and forests."