Ahead of the Global Climate Action Summit that California Gov. Jerry Brown will host in San Francisco in September, the state has released a comprehensive climate report that warns of—as the Democratic governor put it on Twitter—”the apocalyptic threat of irreversible climate change.”
California’s Fourth Climate Change Assessment (pdf) was developed by state agencies and researchers to guide “effective and integrated action to safeguard California” from the mounting threats posed by the global crisis. It draws from more that 40 peer-reviewed studies to outline expected economic and public health impacts—billions of dollars in damage as well as “earlier death and worsening illnesses” among residents—based on climate projections, which include:
- temperature increases coupled with more dangerous heat waves and droughts, which most dramatically affect “low-income households, people of color, and communities already burdened with environmental pollution”;
- more intense rain events and sea-level rise, causing costly inland and coastal flooding that could wipe out many of the state’s beaches and waterfront properties;
- less snow that melts more quickly, which will impact water supply; and
- more “extreme wildfires” that destroy greater swaths of land.
The state is currently battling increasingly devastating wildfires that scientists have said are exacerbated by the global climate crisis. One model highlighted in the report warns that if high greenhouse gas emissions continue, California could see a 77 percent increase in the area destroyed by wildfires by the end of this century. Although President Donald Trump announced last year that he was bailing on the Paris agreement, Brown has committed to working toward reaching the global accord’s emissions reduction goals.
“The basic message is that changes are happening fast, and they’re not good changes. We need to rise to the challenge.”
—Robert Weisenmiller, California Energy Commission
While the report forecasts a frightening future for California—the world’s fifth-largest economy—it also includes proposed actions that elected officials can take to manage the growing dangers of the changing climate.
As California Energy Commission Chairman Robert Weisenmiller told the Guardian: “The good news is that it’s not ‘here’s the dire impact,’ but ‘here’s some ways to mitigate the dire impacts.’ It should give people some hope.”
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