Paul Driessen, senior policy advisor for the Committee For A Constructive Tomorrow: Fifty years ago, I helped organize Earth Day #1 programs on my college campus, calling attention to serious pollution problems that afflicted much of the USA. Over the ensuing decades, laws, regulations, and changed attitudes, practices and technologies reduced most of that pollution, often dramatically. What I find fascinating in all this is the steadfast, often nasty determination of scientists, politicians and interest groups promoting alarmist themes – and profiting immensely from them – to reject and deny any science, history and evidence that undermines their claim that nothing like this ever happened before.