CHARLOTTE, N.C. â" It was just six words, but when President Barack Obama gave a shout-out to global warming in his acceptance speech this month, he reintroduced an issue that had all but disappeared from the political debate.
"Climate change is not a hoax," Obama said, an assertion that brought Democratic National Convention delegates to their feet, as he pledged to continue approaching energy policy in a way he said would "continue to reduce the carbon pollution that is heating our planet."
In a year when the political debate has lacked nearly any discussion of climate change, some environmentalists have struggled to summon enthusiasm for the Democratic president they helped elect in 2008 in part because of his views on global warming. So they rejoiced when the president rebutted a taunt tossed out by Republican candidate Mitt Romney the week before. Romney had quipped in his own acceptance speech in Tampa, Fla., that Obama âpromised to begin to slow the rise of the oceans and heal the planet.â
"My promise is to help you and your family," Romney added.
It was a rhetorical flourish, an attack line offered to make the point that Romney understands the kitchen table issues that, he says, the president doesnât. But environmentalists heard it as heresy.
"Twenty years from now, history is going to judge the next generation on how they responded to the destabilization of our climate," said Michael Brune, executive director of the Sierra Club. "With a couple of short sentences, Romney made clear whatâs at stake in this election."
Yet the nationâs disappointing economic picture, as well as the complexities of each candidateâs record on global warming, make climate change a tough sell for the independent voters who will decide the presidential race.
Although climate change typically ranks below such issues as the economy, polling done in March 2012 by Yale University and George Mason University found that 72 percent of Americans think that global warming should be a priority for the president and Congress. Among registered voters, 84 percent of Democrats, 68 percent of independents and 52 percent of Republicans think global warming should be a priority.
Regardless of the candidatesâ relative silence about global warming on the campaign trail, the next president will face tough choices on controversial energy and environmental issues such as whether to approve the Keystone XL pipeline and how to handle natural gas development and the environmentally fraught âfrackingâ that goes with it.
The silence on the campaign trail belies the reality â" and the gravity â" for many coastal communities. Planners in south Florida and New York City already are looking at the multibillion-dollar expense of upgrading infrastructure to address rising sea levels.
Until recently, though, climate change has been so low a priority in the yearâs political discourse that some major political contributors with a strong interest in environmental issues have been reserved in their giving.
They include such high-profile donors as Susie Tompkins Buell of San Francisco, a close friend of Hillary Clintonâs and co-founder of the Esprit clothing line, who last year protested the interstate Keystone XL pipeline outside an Obama fundraiser, the sort of event she normally would have attended.
Environmentalists have applauded some of the administrationâs top achievements, such as raising automobile mileage standards and lowering mercury emissions. But they also have concerns about opening areas of the Arctic to drilling, increased offshore development in the Gulf of Mexico and other coastal regions, and the failure of Congress to pass cap-and-trade legislation that could have curbed carbon emissions.
Betsy Taylor, a Democratic strategist and consultant who represents a coalition of wealthy environmentally minded donors, said plenty of environmentalists support Obama. But some have been waiting for the president to renew his call for more action on climate change before they donate more. They saw Romneyâs remarks as "a great opportunity for the president to step up and distinguish himself," Taylor said.
The political arms of the Sierra Club, the Natural Resources Defense Council and the League of Conservation Voters see it as a winning issue, particularly in races for the Senate and the House of Representatives. Theyâve targeted candidates who deny climate change; the League of Conservation Voters, for example, has a âFlat Earth Five" itâs targeting. They all say it was insulting for Romney to say that families donât care about climate change.
"I would hazard to guess that those people who got flooded out by Hurricane Isaac are super worried about climate change," said Heather Taylor-Miesle, director of the NRDC Action Fund. "The seas rose in New Orleans. To imply that those families donât care about sea rise is both insensitive and completely oblivious. This is an issue that has real consequences for American families."
Romney has said previously that he believes climate change is occurring and that human activity is a contributing factor. During the Republican primary season, though, he said he didnât believe it was the right course to spend âtrillions and trillionsâ to reduce carbon emissions. More recently, he said in a questionnaire submitted to Science Debate, a non-profit organization focusing on science issues in the presidential campaign, that he believes human activity contributes to global warming and that policymakers should consider the risk of negative consequences.
Frank Maisano, a lobbyist whose firm represents energy interests and who has been involved in climate change discussions for 15 years, cautioned not to read too much into Romneyâs dig about the rise of the oceans. It was designed to show Obama is "a little bit out of touch," he said.
"Right now, you need someone who cares about you rather than these larger, soaring rhetorical issues," Maisano said.
Jim DiPeso of ConservAmerica had the same reaction.
"(Romney) acknowledged that science has shown there is a human role in global warming,â said DiPeso, who represents a national grassroots organization of conservation-minded Republicans who would like to see a fiscally conservative approach to capping carbon emissions.
DiPeso said he hopes Romneyâs acknowledgement will give Republicans lower down on the ticket the freedom to talk about climate change, an issue that once had Republican support. Policymakers may differ on how to address emissions, but carbon dioxide molecules are apolitical, he said.
âBecause weâve gotten to the point where a good Republican canât acknowledge the real science that backs up climate change without being cast as some sort of infidel, or somebody whoâs not a real conservative,â he said.
There are ways to make climate change part of the overall discussion on energy without actually saying "climate change," said Sen. Mark Begich, D-Alaska, who hails not only from an energy-producing state, but one that has to grapple with the eroded coastlines, fiercer storms and melting icepack caused by the changing climate.
Rather than talking about climate change in a vacuum, Begich said, Democrats need to talk about it in the context of national security, energy security and a thriving green economy.
"I think we have a habit as Democrats, we want to get touchy feely and policy wonk stuff to death," he said, while speaking at an energy panel at the convention. "Instead, just plain and simple, this is about economic security, itâs about national security. We cater so deep to our base, we forget the average person is looking at, well, how does it affect them? What does it do for national security? What does it do for the economy?"
Plenty is at stake, said Marc Weiss, a documentary filmmaker and Obama supporter whose film on the history of the environmental movement will be released in the coming month. He continues to support the Obama-Biden campaign. But Weiss wants more voices to speak out on climate.
"Itâs not just about the moral imperative," he said. "I think it could be a winning political strategy. Thereâs a dramatic choice here, and for me itâs a no-brainer."