For a decade, scientists have believed that plants sense temperature mainly through specialized proteins, and mainly at night ...

That little blue star is packed with symbolism. Here's what it means—and what you need to know about ambulances that sport ...

On Thursday, the hottest is expected in the southern part of the country, reaching 39 degrees Celsius (102 degrees Fahrenheit ...

In this case, the limit is 1.5 degrees Celsius, which countries agreed to at the Paris climate conference in 2015. Exceeding the carbon budget does not mean the 1.5-degree limit will be crossed ...

M ost people encounter the dollar sign on a daily basis: in stores, on websites, in the media and more. The symbol also serves as shorthand, referring to money, wealth, capitalism ...

The phenomenon started last July, when a fringe, left-wing activist group based in Barcelona that promotes the “degrowth” of the city’s booming tourism sector held its first successful rally. Some ...

Some tourists who were sprayed took it in stride, even claiming it was refreshing on a day with temperatures pushing up to around 30 degrees Celsius (87 Fahrenheit). But there were moments of tension.

Some tourists who were sprayed took it in stride, even claiming it was refreshing on a day with temperatures pushing up to around 30 degrees Celsius (87 Fahrenheit). But there were moments of tension.

Some tourists who were sprayed took it in stride, even claiming it was refreshing on a day with temperatures pushing up to around 30 degrees Celsius (87 Fahrenheit). But there were moments of tension.