This is not about politics, this is about science, and the science is clearly telling us we are having a significant impact on the earth's climate, and we must act with increasing urgency. The assertion that this is a leftist preconception is nonsense. People across the political spectrum understand the science - there are climate scientists who are part of the 95% scientific consensus who are also to the right politically.
The scientific consensus on global warming is beyond dispute, but like the Tobacco wars of yesteryear, industry will not go down without a well-funded fight (which is exactly what that illustration captures).
You imply in your rebuttal that climate change scientists are engaged in a conspiracy to increase funding. As I said further up the thread, it's as absurd as the '9/11 was an inside job' conspiracy favoured by what you would call 'leftists'.
Lets call the 'global warming conspiracy' what it is: a half-baked fringe conspiracy theory favoured by people who believe the 'skeptic' points endlessly promoted by industry (and continually debunked by actual scientists).