It being the verge of summer, it is time to be ready to repel insects and philistines. One current infestation of philistines has raised the fatuous roar of lamentation over the U.S. withdrawal from the Paris Agreement on climate change. Donald Trump had promised throughout his campaign to do this and it should not have come as a surprise. The treaty consisted of every country pledging whatever its political class was prepared to claim as a goal. Such promises are rarely kept but even if they had been, the Paris treaty would have had no appreciable impact on climate or temperature, though immense amounts of money were pledged to be spent. One of the costlier items was a pledge of US$100 billion a year in climate aid for the developing world. This was just a sophistical exercise in universal deception — any government, democratic or otherwise, that sought to deliver any significant part of such a boondoggle would be promptly evicted from office.