Apart from your final sentence, which is just weird, I don't see these as contradictions. Seldom does anyone agree 100% with someone else (mathematicians might

Apart from your final sentence, which is just weird, I don't see these as contradictions. Seldom does anyone agree 100% with someone else (mathematicians might be an exception), so one could reasonably consider the IPCC to be reliable on some issues and not on others. But that's probably not even what's' happening; the author might (for all I know) think the IPCC is too far on the side of exaggerating the climate change problem (and ignoring the nuclear solution), but still use them as evidence that the climate feature is not as bad as some claim. And the idea that coal is a good idea in India (a relatively impoverished country) and bad in "some regions" (presumably wealthy countries, you don't say) seems entire non-contradictory to me. "Insane" or "strange cult"--oh, stuff and nonsense. You need to come back to reality.