I have not yet visited your links, but I would like to know if this scientist has qualified his statement, or if you know where to find the original statement/interview.
Because this statement only says in polite terms, (coupled with the reason why he wants to leave, and the fact that he never was asked to be a part of the research, they just pasted his name in there,) that nothing was accomplished. Said ruder, more directly: They have wasted a whole lot of money to prove that we don't know anything.
I am not someone dumping litter and toxic materials everywhere. I sort the trash, I use energy efficient light bulbs, I lower my inside temperature.
But, I think the "Global Warming/Climate Change"-hysteria is just that; Hysteria. It won't hurt us to think of other ways to get power than by burning fossile fuels, but I don't think we can affect the climate all that much.
I also seem to remember that making solar panels for homes, produces CO2 equivalent of burning off a lot of coal. Environmentally-kind ways to produce power is waterfalls and (yes, for the environment) nuclear plants. These release CO2 too, but that's less than any other energy source. But they have other problems, I know.