After Earth’s greatest extinction, it wasn’t just volcanic fury that kept the planet hot; it was the death of tropical ...

Lab studies show that when the leaves of rainforest trees reach a temperature of around 47°C (117°F), the cellular machinery that captures energy from sunlight is irreversibly damaged and the ...

Tropical Storm Sara started moving slightly faster Saturday after it stalled over Honduras, drenching the northern coast of the Central American nation, swelling rivers and trapping some people at ...

If tropical air temperatures reach 116 degrees Fahrenheit, a lot of the rainforest could die. This is the first study to narrow in on a threshold that we need to avoid.

Now, in the upper canopies of Earth’s tropical forests, roughly 1 in every 10,000 leaves experiences temperatures at least once a year that may be too high for photosynthesis, researchers report ...

The origins of modern tropical rainforests, such as this stretch of forest near Medellín, Colombia, trace back to the extinction event at the end of the Cretaceous Period, 66 million years ago.