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Summer Isn’t Done, With Triple-Digit Heat Waves Expected to Hit This Weekend

There’s only two weeks of the season left, but triple-digit temperatures persist.

With just two weeks of summer left, oppressive heat will continue to broil the low-lying deserts of California and Arizona over the next few days. Phoenix, in particular, is expected to set a few ominous records with temperatures over 110 degrees Fahrenheit this weekend. 

«A period of very hot temperatures, even by local standards, will occur,» reads an urgent excessive heat warning issued by the National Weather Service Thursday morning. 

Temperatures in the sprawling Phoenix metroplex are forecast to push the mercury as high as 114 degrees on Saturday and Sunday. The city has already seen 52 days with highs over 110 degrees in 2023; adding two more to that count would pass the previous record of 53 days over 110 degrees set in 2020. 

Earlier this summer, the city endured a 31-day streak of days over 110, shattering the previous record of 18 days. 

Maricopa County, which includes Phoenix, is also on pace to reach a more grim milestone — a record for annual heat-associated deaths. As of Wednesday the county counted 194 such fatalities in 2023 so far, with 351 more deaths under investigation to determine a link to the heat. At this point in 2022, there had been 153 confirmed deaths from the heat with 238 more still being investigated. Last year’s final tally of 425 heat-associated deaths is the most recorded in a calendar year since the county started keeping track in 2006. 

More than half of the heat deaths so far in 2023 are among people who are either experiencing homelessness (44%) or have an unknown living situation (10%). 

The City of Phoenix Parks and Recreation Department closes popular hiking trails from 9 a.m. to 5 p.m. on days when the National Weather Service issues an excessive heat warning. Anyone wanting to take a walk at the city’s iconic Camelback Mountain will have to hit it early or later in the evening this weekend. 

excessive heat warning map

Not just a single city’s problem

The danger expands beyond Phoenix’s concrete-laden metroplex, with Tucson, Yuma, Palm Springs and places in between also under an excessive heat warning this weekend. 

Many heat records in the western US are typically competing with previous marks set in just the past decade or so. Climate change and increasing surface temperatures have accelerated drastically in the 21st century, triggering increased risk of heat waves, drought, wildfire and stronger storms. 

Solar physicist Keith Strong noted on Twitter Thursday that record high temperatures around the globe are tripling record lows. 

«In the last week the Earth has set 1,178 new daily record high temperatures compared to just 351 new record lows,» Strong said. «If the climate were in climate balance, these two numbers should be statistically equivalent, but they are not.»

How to stay cool and survive

The National Weather Service urges anyone in a region facing excessive heat to stay hydrated, avoid daytime sun exposure, wear light, loose clothes and seek out air conditioning. 

For more on what types of clothing can help you beat the heat, check out our detailed guide to keeping cool.

Forecasters warn that fans may not be enough to cope with temperatures over 110 degrees this weekend, but access to air conditioning isn’t guaranteed for everyone in the Southwest. Fortunately, we’ve compiled 10 ways to get by without AC when temperatures soar. 

And if you do have to rely on a fan, the proper placement will be key to get the most out of it and stem the sweating. 

Also, fluids without alcohol, sugar and caffeine are more hydrating, as is eating smaller meals more frequently.

Be sure to check in on friends, family, neighbors and pets to see how they’re coping. 

Many communities will offer public cooling shelters, including in Phoenix and Arizona’s Heat Relief Network. Check with your local county or municipal government for other resources. 

Finally, if you’re in a heat zone, take some time to know the difference between heat stroke and heat exhaustion. Heat stroke can be deadly, so check out our guide on the signs, causes and what to do in such a scenario.

Technologies

Google races to put Gemini at the center of Android before Apple’s AI reboot

Google is using its latest Android rollout to position Gemini as the AI layer across phones, Chrome, laptops and cars.

Google is using its latest Android rollout to make Gemini less of a chatbot and more of an operating layer across the phone, browser, car and laptop, just weeks before Apple is expected to show its own Gemini-powered Apple Intelligence reboot at WWDC.
Ahead of its Google I/O developer conference next week, the company previewed a number of Android updates, including AI-powered app automation, a smarter version of Chrome on Android, new tools for creators, a redesigned Android Auto experience, and a sweeping set of new security features.
Alphabet is counting on Gemini to help Google compete directly with OpenAI and Anthropic in the market for artificial intelligence models and services, while also serving as the AI backbone across its expansive portfolio of products, including Android. Meanwhile, Gemini is powering part of Apple’s new AI strategy, giving Google a role in the iPhone maker’s reset even as it races to prove its own version of personal AI on the phone is further along.
Sameer Samat, who oversees Google’s Android ecosystem, told CNBC that Google is rebuilding parts of Android around Gemini Intelligence to help users complete everyday tasks more easily.
“We’re transitioning from an operating system to an intelligence system,” he said.
As part of Tuesday’s announcements. Google said Gemini Intelligence will be able to move across apps, understand what’s on the screen and complete tasks that would normally require a user to jump between multiple services. That means Android is moving beyond the traditional assistant model, where users ask a question and get an answer, and acting more like an agent.
For instance, Google says Gemini can pull relevant information from Gmail, build shopping carts and book reservations. Samat gave the example of asking Gemini to look at the guest list for a barbecue, build a menu, add ingredients to an Instacart list and return for approval before checkout.
A big concern surrounding agentic AI involves software taking action on a user’s behalf without permissions. Samat said Gemini will come back to the user before completing a transaction, adding, “the human is always in the loop.”
Four months after announcing its Gemini deal with Google, Apple is under pressure to show a more capable version of Apple Intelligence, which has been a relative laggard on the market. Apple has long framed privacy, hardware integration and control of the user experience as its advantages.
Google’s Android push is designed to show it can bring AI deeper into the device experience while still giving users control over what Gemini can see, where it can act and when it needs confirmation.
The app automation features will roll out in waves, starting with the latest Samsung Galaxy and Google Pixel phones this summer, before expanding across more Android devices, including watches, cars, glasses and laptops later this year.
The company is also redesigning Android Auto around Gemini, turning the car into another major surface for its assistant. Android Auto is in more than 250 million cars, and Google says the new release includes its biggest maps update in a decade and Gemini-powered help with tasks like ordering dinner while driving.
Alphabet’s AI strategy has been embraced by Wall Street, which has pushed the company’s stock price up more than 140% in the past year, compared to Apple’s roughly 40% gain. Investors now want to see how Gemini can become more central to the products people use every day.
WATCH: Alphabet briefly tops Nvidia after report of $200 billion Anthropic cloud deal

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Technologies

Waymo recalls 3,800 robotaxis after glitch allowed some vehicles to ‘drive into standing water’

Waymo issued a voluntary recall of about 3,800 of its robotaxis to fix software issues that could allow them to drive into flooded roadways.

Waymo is recalling about 3,800 robotaxis in the U.S. to fix software issues that could allow them to “drive onto a flooded roadway,” according to a letter on the National Highway Traffic Safety Administration’s website.
The voluntary recall is for Waymo vehicles that use the company’s fifth and sixth generation automated driving systems (or ADS), the U.S. auto safety regulator said in the letter posted Tuesday.
Waymo autonomous vehicles in Austin, Texas, were seen on camera driving onto a flooded street and stalling, requiring other drivers to navigate around them. It’s the latest example of a safety-related issue for the Alphabet-owned AV unit that’s rapidly bolstering its fleet of vehicles and entering new U.S. markets.
Waymo has drawn criticism for its vehicles failing to yield to school buses in Austin, and for the performance of its vehicles during widespread power outages in San Francisco in December, when robotaxis halted in traffic, causing gridlock.
The company said in a statement on Tuesday that it’s “identified an area of improvement regarding untraversable flooded lanes specific to higher-speed roadways,” and opted to file a “voluntary software recall” with the NHTSA.
“Waymo provides over half a million trips every week in some of the most challenging driving environments across the U.S., and safety is our primary priority,” the company said.
Waymo added that it’s working on “additional software safeguards” and has put “mitigations” in place, limiting where its robotaxis operate during extreme weather, so that they avoid “areas where flash flooding might occur” in periods of intense rain.
WATCH: Waymo launches new autonomous system in Chinese-made vehicle

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Technologies

Qualcomm tumbles 13% as semiconductor stocks retreat from historic AI-fueled surge

Semiconductor equities reversed sharply after a broad AI-driven advance, with Qualcomm suffering its worst day since 2020 amid inflation concerns and rising oil prices.

Semiconductor stocks fell sharply on Tuesday, reversing course after an extensive rally that had expanded the artificial intelligence investment theme well past Nvidia and driven the industry to unprecedented levels.

Qualcomm plunged 13% and was on track for its steepest single-day decline since 2020. Intel shed 8%, while On Semiconductor and Skyworks Solutions each lost more than 6%. The iShares Semiconductor ETF, which benchmarks the overall sector, fell 5%.

The sell-off came after a key gauge of consumer prices came in above forecasts, and as conflict in Iran pushed crude oil higher—prompting investors to shift away from riskier assets.

The preceding advance had widened the AI opportunity set beyond longtime industry leader Nvidia, which for much of the past several years had largely carried the market to new peaks on its own.

Explosive appetite for central processing units, along with the graphics processing units that power large language models, has sent chipmakers to all-time highs.

Market participants are wagering that the shift from AI model training to autonomous agents will lift demand for additional AI hardware. Among the beneficiaries are memory chip producers, which are raising prices as supply remains tight.

Micron Technology slid 6%, and Sandisk cratered 8%. Sandisk’s stock has surged more than six times over since January.

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