Hydration multipliers are everywhere. Should you use them in a heat wave?
As temperatures soar this summer, are powdered products marketed as hydration multipliers worth it?
Heat
Record-breaking temperatures scorch Europe
Europe is experiencing a record-breaking heat wave that has forced the Eiffel Tower summit to shut down and hundreds of French schools to close. CBS News' Ramy Inocencio has the latest from Paris.
Sweltering summer temps renew concerns about worker safety
Outdoor workers in jobs like construction and landscaping are especially at risk when the mercury soars, doctors say.
Keeping cool in extreme urban heat
As the first major heat wave hit the Northeast this week, city dwellers experienced what is known as the "island effect." Here's how one neighborhood plans to stay cool amid the extreme heat.
Summer heat increases risk of child deaths in hot cars
Nine children have died in the U.S. after being left in hot cars this year, according to data from Kids and Car Safety.
Boston blocks become test cases for beating heat
In Chelsea, Massachusetts, one city block is being transformed to test solutions for extreme urban heat. Ben Tracy from Climate Central reports.
Extreme heat pushing Arizona's saguaro cactus to its limit
Over the last five years, researchers have found that the death rate for saguaros in the Phoenix area jumped from 1% to 2% every year, and is now closer to 7%
Extreme heat threatens Arizona's saguaro cactus
Arizona's saguaro cactus has evolved to thrive in the extreme climate of the Sonoran Desert, but after decades of rising heat, even these towering icons are showing signs of stress. Kris Van Cleave reports.
Doctor on how to stay safe during a heat wave
Extreme heat can have some serious and dangerous impacts on people's health. A study published in the Journal of the American Medical Association found that more than 2,300 Americans suffered heat-related deaths in 2023, the highest number recorded. Dr. Eric Legome, chair of emergency medicine of the Mount Sinai West and Morningside Hospital, joins "The Daily Report" with tips on how to stay safe.
Millions of Americans look for relief as heat wave sets record highs
Dozens of record high temperatures were set Tuesday across parts of the U.S., and it's not over yet.
Climate change, heat and pregnant women
Health officials say heat can be especially dangerous for pregnant women. David Schechter reports on how climate change is raising those risks.
How Southwest Airlines is implementing changes to address heat hazards
Southwest Airlines launched a multi-million dollar initiative after extreme summer heat led to beverage cans bursting on flights.
Millions brace for extremely dangerous heat wave
The start of summer delivered a sudden shift in weather, as millions of Americans are bracing for what's expected to be an extremely dangerous heat wave. Ali Bauman and Andrew Kozak have more.
Millions brace for record-breaking heat
Hundreds of thousands lost power after powerful storms swept from North Carolina to New York. Now, record-breaking heat is moving in, with nearly 75 temperature records expected through Monday.
Dangerous heat wave to slam U.S.
A dangerous heat wave is expected in parts of the U.S. Las Vegas, Nevada, is already bracing for temperatures in the triple digits. CBS News' Andres Gutierrez reports.
Powerful heat wave grips Southwest U.S.
Another brutal heatwave is roasting the Southwest with Las Vegas finding itself in the middle of its fourth extreme heat warning before summer officially begins. CBS News reporter Andres Gutierrez has more.
Batteries made of ice cool down buildings
According to data from research nonprofit Climate Central, heat has accounted for nearly half of weather-related power outages in the U.S. between 2000 and 2023. CBS News national environmental correspondent David Schechter visited a New York City building that relies on ice to keep the temperature down.
"Ice battery" system being used to cool buildings and lower energy costs
The "ice battery" system freezes water at night when the cost of electricity is low. Then, during the day, when the price is high, the building is cooled with the previous night's ice instead of using expensive electricity.
Report: 50% of world experiences more extreme heat
A new report found that nearly half of the world's population has been forced to endure an extra month of extreme heat due to climate change. Kristina Dahl, a reviewer of the findings, joins "The Daily Report" to discuss.
74-year-old hiker dies while attempting Grand Canyon rim-to-rim hike
Dennis Smith was an "avid and experienced hiker," the National Park Service said.
How climate change is increasing complication risks for pregnant women
Early season heat waves gripping the Central and Southern United States are bringing attention to the health dangers of high temperatures during pregnancy.
Extreme heat's risks for pregnant women
Six million people are under heat advisories across the Central and Southern U.S. this week, with temperatures expected to be up to 35° above average. In Texas, temperatures reached triple digits, something historically uncommon for the month of May. CBS News medical contributor Dr. Céline Gounder explains the health concerns, especially for pregnant women.
Federal judge says extreme heat in Texas prisons is "unconstitutional"
A federal judge has found the extreme heat in Texas prisons that don't have air conditioning is "plainly unconstitutional."
Rio de Janeiro records its hottest day in at least a decade
Temperatures in Rio de Janeiro reached 111 degrees Fahrenheit — about 145 degrees hotter than Bismarck, North Dakota.
7/26: CBS News Mornings
Extreme heat wave scorches several states; House Oversight Committee to hold UFO hearing today.
Trump-Putin summit in Alaska concludes with no deal on Ukraine ceasefire
President Trump and Russian President Vladimir Putin held a high-stakes summit in Alaska, but the talks did not yield a ceasefire in Ukraine.
Erin strengthens into hurricane, the first of 2025 Atlantic season
Erin is the first hurricane to develop over the Atlantic this year, and meteorologists are closely tracking its path and forecast.
Trump administration faces lawsuit over "secret report" on climate change
Environmental groups and independent scientists are criticizing a report assembled by a small team of well-known climate skeptics selected by Energy Secretary Chris Wright.
Here's the transcript of what Putin and Trump said in Alaska
Both President Trump and Russian President Vladimir Putin delivered brief remarks, but took no questions, in Alaska.
DOJ removes D.C. emergency police chief, agrees to rewrite immigration directive
Attorney General Pam Bondi issued an order Thursday that amounted to a reversal of "sanctuary" policies in D.C. The District sued over the order Friday.
Democrats unveil maps of California's redistricting proposal
Democrats unveiled a proposal Friday that could give California's dominant political party an additional five U.S. House seats in a bid to win the fight to control Congress next year.
"Devil in the Ozarks" spent 6 months planning prison break, report says
An internal review reveals that a former police chief, known as the "Devil in the Ozarks," spent months planning his escape from an Arkansas prison.
Fewer young peope are reaching economic milestones linked to adulthood
As less young people meet major economic milestones such as moving out and getting married, the concept of adulthood is changing.
Clinton says Trump should get Peace Prize if he ends Ukraine war without concessions
Former Secretary of State Hillary Clinton said if President Trump is the architect of a deal to end the war in Ukraine without Kyiv ceding land to Russia, "I'd nominate him for a Nobel Peace Prize."