Global Warming deniers remind me rather of the tobacco smokers of my youth. They were absolutely convinced in the face of statistical evidence and medical advice that their habit wasn't harmful. There was always some other explanation. Commercial fishing was the same: the depletion of fish stocks was nothing to do with them and no way did the fishing industry need to be regulated.
There was an interesting Radio 4 programme recently about wild-fires, which are on the increase around the world.
The programme centred on the problem in Canada, featuring Fort McMurray.
Forest fires are a natural occurrence in Canada, but global warming is the best explanation for the average temperature in Canada rising a couple of degrees. The rise also explains Canada's reducing rainfall. In Canada, the wildfire season now starts two months early, and it lasts two months longer. As the forest is also dryer than it used to be, wildfires in Canada are bigger and more frequent than before.
This growth isn't peculiar to Canada: it's a global phenomenon, for example it's happening in the US as well and in a long list of other countries.
No-one says that Global Warming is responsible for wild-fires. Rather it is the most likely reason that big fires break out more often. Global warming isn't a matter of opinion, it's happening. The root causes are more difficult to prove, but the most likely cause is human activity. Unfortunately, that collides head on with short-term self interest. I fear for my grandchildren.
Dave