CLIMATE change is hardly a seasonal issue, but summer is the only time of year when Americans and the news media regularly fix their attention on the everyday heat emergency that’s already altering life on our planet. Indeed, this summer’s record-shattering weather across the United States has created a heightened level of interest in and concern about the consequences of climate change.

For the moment, we have an opportunity to make fundamental changes to the way our country deals with the environment, changes that would lock in public acceptance of climate change. But we have to act quickly — not only because the crisis is urgent, but because one good blizzard could change a lot of minds.

For now, though, Americans, long cynical about global warming, are confronting the facts. According to a survey conducted in July by the University of Texas, 70 percent of Americans believe the climate is changing, compared to 65 percent in March, and only 15 percent say it isn’t. Party affiliation continues to divide public opinion, but today most Republicans, 53 percent, believe in climate change, as do 72 percent of independents and 87 percent of Democrats.

Perhaps that’s because this year’s extreme weather has afflicted residents of red and blue states equally. The United States Drought Monitor, based at the University of Nebraska, reports that moderate to severe drought conditions this summer are affecting 64 percent of the lower 48 states, leading to domestic food inflation and record high prices for grain.