Santa Ana influenced fires, which occur between October and April, are different from the warm and dry season fires, that typically occur between June and September. Scientists have found the main reasons why Santa Ana influenced fires contribute the vast majority of cumulative economic losses in California compared to other wildfires that typically occur in the summer. From 1990-2009, Santa Ana influenced fires spread three times faster, occurred closer to urban areas, and burned into areas with greater housing values. Over the same years, other fires often occurred in higher elevation forests, were more sensitive to how old the vegetation was, lasted for extended periods, and accounted for 70% of total suppression costs. In other words, other fires burned in remote forests, often with plenty of mature vegetation or ‘fuel’ for long-lasting wildfires. Whereas Santa Ana influenced fires scorched with greater speed through areas that were typically closer to more people. Read more >
November 16, 2018 4:27 PM EDT
November 9, 2018 2:14 PM EDT
You may have heard that natural gas is “clean.” Compared to coal, natural gas produces less global warming emissions and air pollution. But coal is just about the dirtiest way to produce electricity, so almost anything will seem cleaner in comparison. The fact of the matter is that natural gas power plants still produce a significant amount of air pollution, and that’s a problem.
October 2, 2018 4:44 PM EDT
It’s Fall. That means crisp morning air, dwindling sunlight, and a chance to take stock of legislative victories and setbacks in California, as Governor Brown has now signed or vetoed the last of the bills sent to his desk this year.
As always, the progress we make in Sacramento is not only improving Californians’ quality of life, but also keeping momentum going for other states and countries. Many of the gains we make in clean technologies, for example, are reducing costs and proving solutions at scale, charting a course from which others can learn.
September 19, 2018 1:18 PM EDT
With last week’s Global Climate Action Summit in San Francisco all wrapped up, it’s time to get down to the business of turning words into actions. And next week, California is poised to do just that. The California Air Resources Board agenda for next Thursday and Friday is chock-full of transformative policies that, if adopted, will accelerate deployment of electric cars and transit buses, increase electric charging and hydrogen refueling infrastructure, bring more low carbon alternatives to diesel and gasoline to the state, and ensure consumers in California and the 12 other states that follow California’s standards continue to have cleaner, more efficient vehicle choices.
September 14, 2018 9:52 AM EDT
California is offering a ray of hope for a planet that is facing increasingly terrible impacts from global warming. Governor Jerry Brown has convened an international climate summit in San Francisco that demonstrates the huge number of jurisdictions both nationally and from around the world, in addition to businesses and industries, religious groups, climate justice advocates, and a lot of scientists, among many others, who are working hard for climate action. Read more >