Gary Sadler: Climate change: Not a hoax (Summit Daily News) To suggest that human involvement in global warming is a global hoax perpetrated by politicians and the renewable energy industry as done by Martin Hertzberg in his commentary "More on the climate-change hoax" (Nov. 17) is like saying that assertions that cigarettes cause cancer is a plot by politicians and the health care industry to extort money from big tobacco. This piece should be given ... [News Source]