In a post earlier today, I mentioned a mistake that many enviros made in the run up to the great cap-and-trade wars of 2009-10: they saw national polls showing support for clean energy and clean air and took those polls as evidence of political strength.

But as I noted in the post, political strength does not arise from broad, shallow support. It comes out of passionate, activated, well-funded constituencies that target specific legislators. That’s what moves votes in Congress.

Fortuitously, a great example of that error just showed up in my inbox. The indefatigable Anthony Leiserowitz and his team at Yale have completed their latest public survey on climate and energy. Here are a few of their conclusions:

• Concern about the effects of climate change is high across political groups, with majorities of Democrats and Independents expressing concern about global warming and its potential harm for themselves and future generations.