The encounter was disappointing but not surprising. I served years of hard time as a liberal journalist in Europe and learned that covering the environmental beat meant toeing the line of extremism — no inconvenient questions allowed.

But it is now time for journalists, and the consumers and businesses that will pay the ultimate price, to start questioning the conventional wisdom about global warming and exposing its true cost. If alarmists like Al Gore get their way, millions of American families will watch as their dreams of a prosperous and pleasant future disappear.

The evidence of environmentalism run amok abounds in Europe. Spain believed the spin that environmental regulation can create “green jobs” and boost the economy. Now the country has 18% unemployment. Britain could suffer blackouts because of policies that require the country to replace coal with fuels like solar and wind power that aren’t readily available or reliable.

Unfortunately for Americans, many of the lawmakers who represent them in Congress seem unwilling to learn from Europe’s mistakes.