Science

For the second time in two years, the World Health Organization has taken the extraordinary step of declaring a global emergency. This time the cause is monkeypox, which has spread in just...

This week, temperatures in Britain reached a record 40.3 degrees Celsius, or 104.5 Fahrenheit, capping a brutal heat wave that scorched Europe and sent electricity demand soaring.It came amid a war in...

In April of last year, Rachel Brown’s oncologist called with bad news — at age 36, she had an aggressive form of breast cancer. The very next day, she found out she...

“An expensive (read $6 trillion) attempt to prevent an effective doubling of CO2 will almost certainly fail, and at best will slow it down a few years,” he wrote in a 1990...

People with coronavirus infections of the Omicron variant often have significantly different viral levels in their noses, throats and saliva, and testing just a single type of sample is likely to miss...

In 2000, Lake Mead was full of deep, midnight-blue water that flooded the banks of the rivers that fed it. But 20 years later, it has shrunken drastically. And its basins are...

What do you do when a volcano erupts for the first time in centuries?For many people on the southern peninsula in Iceland, when the Fagradalsfjall volcano went off in 2021 after 781...

States in the Colorado River basin are scrambling to propose steep cuts in the water they’ll use from the river next year, in response to a call by the federal government for...

The giant ibis deserves its name.Adults of the largest bird in the ibis family can grow to almost 3.5 feet in length, weigh more than nine pounds and boast nine-inch beaks that...

North America’s monarch butterfly, whose showy looks and extraordinary migration have made it one of the continent’s most beloved insects, has been classified as endangered by the International Union for Conservation of...