Globe and Mail columnist Peggy Wente, so recently converted to the cause of climate change, weighs in again today to say that she “almost” feels sorry for Canadian Environment Minister Rona Ambrose.

While acknowledging that Ambrose’s proposed Clean Air Act is a joke that won’t begin to address climate change within a realistic time frame, Wente goes on to say that nothing Canada does will solve the problem worldwide.

(Aside from, perhaps, showing leadership and establishing a national economic advantage in developing alternative energy technology, she’s right. But I lose the thread of her argument. What’s her point: that we should give up?)

Wente concludes that “Global warming is like peacekeeping, only harder.” And you can rest assured that she’s gonna stay belted in her SUV, broaching no risk that she might chip a nail answering to either challenge.