We environmentalists know the environment is the most important public issue of our time, in this age of climate disruption. But it fails to rise to the top of the issues list in opinion polls—it’s way below the economy, and below terrorism.

I’m therefore calling for environmentalists to declare that the environment is their number one issue in the 2016 elections. I’ll take the pledge—will you?

If enough of us will publicly pledge to vote primarily on the basis of the candidates’ environmental positions, we will have a voting bloc large enough to influence the election. We will be able to ask candidates to declare that they, too, support #EnvironmentFirst.