Government officeholders at federal and state levels assume that global warming is chiefly, if not entirely, due to mankind’s growing carbon dioxide emissions, but they have not examined the science enough.

Most of our political leaders see the U.N. Intergovernmental Panel on Climate Change reports as presenting an indisputable scientific consensus. Meanwhile, lawyers successfully argue that CO2 is now a pollutant, and around the world armies of regulatory bureaucracies eagerly anticipate expansion of their funding and power to “save the planet.”