How to Weather the Heat

Good morning.

Californians are getting used to devastating, lengthy fire seasons. And if this year and the last are any indication (and they probably are), we’re also going to have to get used to extreme heat.

This year, heat waves have walloped the Pacific Northwest in particular. But Death Valley hit a whopping 130 degrees this year, as it did last year — possibly the hottest temperature ever reliably recorded on Earth — and temperatures across the state have prompted heat warnings as they have deepened the effects of the drought.

In other words, policymakers and residents across the West — in California not least of all — should view this moment as a kind of wake-up call.

“We need to treat extreme heat like other disasters,” Dr. David Eisenman told me. And he would know: He’s the director of the University of California, Los Angeles’s Center for Public Health and Disasters.

Broadly, Eisenman said raising public awareness might entail grading or naming heat waves, like hurricanes, so they are taken more seriously.

Most importantly, it means recognizing the ways in which dangerously hot temperatures affect already vulnerable communities. In poorer communities, there is often less shade from trees and other sources to block the scorching sun, and fewer households can afford air-conditioners.

As my colleague Christopher Flavelle reported, heat-related injuries in workplaces — including construction sites and warehouses — have been vastly undercounted.

The fact that these oppressive temperatures often coincide with fires that foul the air is also a looming mental health catastrophe, Eisenman said.

“Those same people who need to access the outdoors at night to cool down, to use the publicly available beaches and parks, are now at risk of the respiratory effects and cardiac effects of the pollutants that come off wildfires,” he said.

As wildfire season increasingly stretches over months, he said, people who may spend much of their time indoors will “have that locked-down, isolated feeling we all know from the pandemic.”

Still, Eisenman said, he’s not totally despairing: The rising awareness of the dangers posed by extreme heat is prompting urgent work to upgrade air-conditioner technology, to adapt architecture for the heat and to plant trees.

California is one of relatively few states that has worker-safety regulations regarding heat, he added. But he’s optimistic that more will develop such rules.

“I think in the next decade, we’re going to see a lot of push for change,” he said. “We’re going to see some practical results in the few years to come.”

In the meantime, I asked Dr. Maria Raven, chief of emergency medicine at the University of California, San Francisco, for some tips for staying safe in the heat, if you are going to go out:

• Give yourself time to acclimate: Raven said it takes a week or two to get used to the heat. Increase the amount of time you spend outdoors each day gradually, if you can, by about 20 percent.

• Go outside in the morning or evening: Even a five- or 10-degree temperature drop can make a big difference.

• Know the signs of heat exhaustion and heat stroke: If you’ve got heat exhaustion, you’ll be sweating profusely, and you may feel a little nauseated. Your skin may be red and hot to the touch, as if you have a fever. If your body approaches heat stroke, which is severe enough to require medical attention, you will stop sweating, and your core temperature will elevate quickly.

• Know what to do if you’re suffering from heat-related illness: The top priority, Raven said, is to hydrate. Drink water. You can also use ice packs (in the groin or armpits) and sit near a fan if possible.

• Don’t push yourself, or anyone else, past comfort: “It can be a badge of honor to go and work out when it’s really hot, but it’s not worth it,” Raven said. That includes student athletes and employers. It’s crucial to give everyone who is outside in the heat time to rest and drink water.

For more:

• Read more from the state of California about your rights if you must work outside.

• Explore how much hotter your hometown is now than when you were born.

• A series of outages that started Friday and lasted through Tuesday morning were heat-related, Pacific Gas and Electric Co. confirmed. However, the most recent outage on Tuesday evening, lasting several hours around Bakersfield, doesn’t appear to have been related to the heat; the cause was still unknown as of Wednesday, The Bakersfield Californian reports.

• According to The Fresno Bee, a new study found Fresno needs approximately 1.9 million more trees to help soften the impact of the central San Joaquin Valley’s heat waves and help residents cut high energy costs.

• If you missed it, read more about how shade is a mark of privilege in Los Angeles.

• Amid rising Covid-19 cases, largely driven by the highly infectious Delta variant, Los Angeles County will require residents to once again wear masks indoors, regardless of vaccination status, officials announced on Thursday.

• The Sugar fire originally missed the neighborhood of Doyle, CapRadio reports, but has now doubled back, leaving the residents with little time to prepare yet again.

• According to The San Francisco Chronicle, there has been a 36 percent increase in Bay Area homicides through the first six months of 2021, with Oakland seeing the highest amount of deaths.

• ABC7 reports that days after a massive sewage spill on the beaches from El Segundo to the southern end of Playa del Rey, the Los Angeles County Department of Public Health has announced that they are clean enough to reopen.

• A sold-out Foo Fighters show, scheduled for July 17 at the Forum in Inglewood, was postponed on Wednesday because of a positive Covid-19 test in the band or crew, The Press-Enterprise reports.

• The police have charged 35 more minors after a 2,500-person celebration in Huntington Beach, promoted on TikTok as “Adrian’s Kickback,” on May 22, The Fresno Bee reports.

• Our Lady of La Vang, to be introduced to the public on Saturday in Garden Grove, is the first large-scale rendition in the U.S. of a figure sacred to Vietnamese Catholics, who were persecuted for their faith, reports The Los Angeles Times.

• Disney will relocate 2,000 jobs from California to Florida. That’s less than 5 percent of Disney’s California work force, and its corporate headquarters will remain in Burbank.

• The Sacramento Bee highlights “The Complete Works of William Shakespeare (Abridged),” debuting this summer at the Lake Tahoe Shakespeare Festival in Incline Village. With a cast of just three actors, the comedy will compress the playwright’s works into the time frame of a typical play — about two hours.

California Today goes live at 6:30 a.m. Pacific time weekdays. Tell us what you want to see: CAtoday@nytimes.com. Were you forwarded this email? Sign up for California Today here and read every edition online here.

Jill Cowan grew up in Orange County, graduated from U.C. Berkeley and has reported all over the state, including the Bay Area, Bakersfield and Los Angeles — but she always wants to see more. Follow along here or on Twitter.