Panelists assess California's successes and shortcomings as a climate policy pioneer at a CALmatters panel, one of the ancillary events at the global climate summit underway in San Francisco. From left, CALmatters environmental reporter Julie Cart, former legislator Fran Pavley, manufacturing industry rep Michael Shaw and clean energy advocate V. John White.

In summary

California has been a leader in developing climate policy, yes, but there have been missteps, and there’s more work to do.

Pose this question to any number of experts: Should California be a role model for responding to climate change? Expect any number of differing responses.

Indeed, the answer proved complicated and nuanced for a trio of environmental experts representing industry, advocacy and the Legislature, who assembled for a CALmatters panel today at the Global Climate Action Summit in San Francisco. It boiled down to this: California has been a leader in developing climate policy, yes, but there have been missteps, and there’s more work to do.

Fran Pavley, the former Democratic legislator who wrote California’s seminal climate law, said the state’s policies are influential, not least because the technology that has grown up around them is on the leading edge, too.

“The technologies made in California have made a difference around the world, are probably just as important as some of the policies,” she said.

She once sat next to a Chinese engineer at an air pollution conference, and he told her he and his colleagues paid close attention to actions taken by California’s Air Resources Board. “He said, ‘We wouldn’t have catalytic converters in our cars today of it wasn’t for California,’ ” Pavley recounted.

The CALmatters panel, before a full house at the Public Policy Institute of California, came on the opening day of the global summit, co-hosted by Gov. Jerry Brown.

The policies Pavley and others put into place—and which are celebrated this week—have come at a furious rate for California businesses, who’ve been told to find a way reduce greenhouse gas emissions.

Is California a role model? “Yes and no,” said Michael Shaw, vice president at the California Manufacturers and Technology Association.

“Some things are not working as well as they could because we don’t make changes to the old programs or get rid of the old programs,” he said. “It’s difficult when California continues to push forward when the rest of the country and, for the most part, some of the world is not following suit. That puts industry at a little bit of risk.”

To V. John White, a longtime advocate for clean energy, California is not so much a model as a laboratory.

“The beginning of our leadership on these issues goes way back,” said White, executive director of the Center for Energy Efficiency and Renewable Technologies. “The leadership comes from our air pollution experience. We have been trying things. We are innovating. But we have to keep going.”

Pavley echoed that.

“These impacts of climate change, I didn’t think I’d see in my lifetime,” she said. “We need to double down on what we are doing on reducing greenhouse-gas emissions. It’s not a theoretical discussion any more. We have to be smart, but there needs to be a sense of urgency. It’s a collective responsibility.”

Check out all of CALmatters’ key climate policy coverage here

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Julie Cart joined CalMatters as a projects and environment reporter in 2016 after a long career at the Los Angeles Times, where she held many positions: sportswriter, national correspondent and environment...