On Monday, Stephen Harper, the prime minister of Canada, traveled to China for a week of high-level meetings. He brought with him a handful of his cabinet ministers, including Joe Oliver, his tough-talking minister of natural resources who, until recently, had been withering in his scorn for the opponents of the Keystone XL oil pipeline, which [US] President Obama rejected a few weeks ago. The pipeline, of course, was intended to transport vast oil reserves in Alberta to the American refineries on the Gulf of Mexico.

Oliver no longer talks so freely about the environmental critics of the Keystone pipeline; all of Harper’s ministers have been instructed to stop making comments that might be construed as interfering in the American presidential election. But there are other, more diplomatic, ways to send messages. Like going to China with your cabinet members and cutting energy deals with a country that has, as The Globe and Mail in Toronto put it recently, a “thirst for Canadian oil.” Oil, I might add, that may be a little dirtier than the crude that pours forth from the Saudi Arabian desert—that is one of the main reasons environmentalists say they oppose Keystone—but is hardly the environmental disaster many suppose.…

What [Obama’s] Keystone decision…represents is the way our poisoned politics damages the country. Environmental concerns notwithstanding, America will be using oil—and lots of it—for the foreseeable future. It is the fundamental means by which we transport ourselves, whether by air, car or truck. Where do we get that oil? Mostly from countries that don’t like us, like Venezuela, which has the world’s second-largest oil reserves.

And here is Canada, a staunch American ally that has historically sold us virtually all of its crude exports. Over the past two decades, energy companies have invested tens of billions of dollars in the tar sands, so much so that Canada now ranks No. 3 in estimated oil reserves. Along with the natural gas that can now be extracted thanks to hydraulic fracturing…the oil from the Canadian tar sands ought to be viewed as a great gift that has been handed to North America. These two relatively new sources of fossil fuels offer America its first real chance in decades to become, if not energy self-sufficient, at least energy secure, no longer beholden to OPEC. Yet these gifts have been transformed, like everything else, into political footballs.

In Canada, the Keystone XL controversy has created a surprising new resolve.… Instead of blithely assuming the United States would purchase its oil, Canada is now determined to find diverse buyers so it won’t be held hostage by American politics. Hence, the newfound willingness to do business with China. Canada has concluded that it simply can’t expect much from the United States, even on an issue that would seem to be vital to our own interests.… At least one country in North America understands where its national interests lie. Too bad it’s not us.