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U.S. Cuts Colorado River Water for Arizona, California and Nevada

SCOTT DANCE

Arizona’s share of the river will shrink by a third, likely increasing reliance on groundwater and raising pressure on agriculture.

Quiz question: It’s a Greek letter and a guy’s name. What does it mean?

THE NEW YORK TIMES

Test your science knowledge.

Climate change opens Arctic shipping routes as roadless forest protections face rollback

Forests, extreme weather and the realities of a warming world

See states’ kindergarten vaccination rates—from highest to lowest

Even as cases of diseases such as measles rise, childhood vaccinations are declining, thanks to changes in public health policies and antivaccine sentiment, experts say

Sorry, Pluto’s still not a planet

On the 20th anniversary of Pluto's infamous demotion, Mike "Pluto Killer" Brown explains why any reversal of that decision would be driven more by nostalgia than science

China delays ambitious Chang’e 7 moon mission until 2027

The search for frozen water is crucial to both China's and NASA's plans to establish permanent moon bases

Why Getting High Has Only Gotten Cheaper

MATT RICHTEL AND IRENA HWANG

The “war on drugs” sought to reduce substance abuse by driving up prices and lowering demand. Today, street drugs are less expensive and more dangerous than ever.

Earth’s oceans just hit their hottest temperature ever recorded

The world's oceans hit 21.10 degrees Celsius last Saturday, breaking a record set in 2024

‘Extreme’ wildfire sweeps Nevada as U.S. tallies almost 51,000 wildfires so far this year

A wildfire outside Reno began on August 22 and has already burned more than 15,000 acres of land

The Ruthless Efficiency of Ultrapotent Street Drugs

MATT RICHTEL

Five decades after the “war on drugs” sought to make substance abuse unaffordable, illicit drugs are cheaper and more powerful than ever. A visit to Baltimore shows why.

Mapping America’s Largest ‘Dead Zone’

K. R. CALLAWAY AND BRYAN TARNOWSKI

In a decades-long crisis, marine life has suffered as oxygen periodically dwindles in waters along the Gulf Coast.

Nevada Sues Trump Administration Over Colorado River Cuts

SCOTT DANCE

The state seeks to block plans for significant water use restrictions over the next decade.