“The challenge is to build for the future, not steal from it,” said Governor Brown, who is the embodiment of the line about how living well is the best revenge — political division. He is 76, but said he’s been pumping iron and eating his vegetables of late so he can live to see the completion of the high-speed rail system, about 2030, when Governor Brown would be a frisky 92.

Russia, which is ranked below California in overall economic output, is teetering as world commodity prices provide a cold lesson in what can happen to a country tied to the fate of oil’s wild swings. The Republicans should take note. The Keystone pipeline, though largely symbolic in the global scheme of things, does nothing for the American economy except set up the United States as a pass-through colony for foreign industrialists. Well, not all foreign: The Koch brothers are one of the largest outside leaseholders of acres in Canadian oil sands, according to a Washington Post report. I’m sure that has nothing to do with the fierce urgency of rushing Keystone XL through Congress now.

At the same time, the Republican hold-back-the-clock majority announced plans to roll back environmental regulations. Fighting hard for dirty air, dirty water and old-century energy producers, the new Senate leaders are trying to keep some of the nation’s oldest and most gasping coal plants in operation, and to ensure that unhealthy air can pass freely from one state to the other. One strategy is to block money to enforce new rules against the biggest polluters.

For intellectual guidance, Republicans can count on 80-year-old Senator James Inhofe of Oklahoma, the incoming chairman of the environment committee. Inhofe calls the consensus scientific view on human-caused warming “the greatest hoax.” He plans to use his gavel to hold back regulations aimed at reducing carbon emissions, fighting the obvious at every turn.

The headache, for the rest of us, will come when the nations of the world meet in Paris at year’s end to discuss how to address the problem that knows no nationality. We’ll talk about China and its climate-warming coal plants. Critics will point to the United States, its knuckle-dragging Congress and the industries it is shielding from responsibility.