A mix of factors is contributing to an increasing mortality rate of trees in the moist tropics, where trees in some areas are dying at about twice the rate that they were 35 years ago, according to a far-reaching study examining tree health in the tropical zone that spans South America to Africa to Southeast Asia.

A botanist, a retired businesswoman, and a high school student walk into a bar. Or, maybe not a bar, what with the high school student. A museum. They and their team have a common problem—too many plant photos to analyze—and they find a solution: creating an online tool that lets regular, non-scientist people help do that analysis.

Tropical Cyclone Hola was dropping heavy rainfall on Vanuatu and New Caledonia when the Global Precipitation Measurement mission or GPM core satellite passed overhead.

A new study by scientists from WCS (Wildlife Conservation Society) and other groups predicts that the effects of climate change will severely impact the Albertine Rift, one of Africa’s most biodiverse regions and a place not normally associated with global warming.

A day at the beach beset by heavy clouds or the sticky heat of a salty haze can seem like the work of large, unpredictable forces. But behind such atmospheric phenomena are billions of tiny interactions between the air and microscopic drops of saltwater cast upward as bubbles on the ocean’s surface burst.

In a “prediction” that mirrored last year, Punxsutawney Phil, the famous furry forecaster, saw his shadow in early February and as the legend goes, supposedly six more weeks of winter for the U.S. Unfortunately for Phil, his forecast has not been supported by the climate record, so far.  

A new study shows that, during the Ice Age, both the East Asian summer monsoon and desertification in Eurasia were driven by fluctuating Northern Hemisphere ice volume and global sea level. 

Unless the clearing of tropical forests is halted, the mean global temperature could rise an extra 0.8 °C, even with cuts in emissions from fossil fuels, scientists warn in an article in Nature Communications

The simple story says that during the last ice age, temperatures were colder and ice sheets expanded around the planet. That may hold true for most of Europe and North America, but new research from the University of Washington tells a different story in the high-altitude, desert climates of Mongolia.

For nearly two decades, scientists have noted dramatic changes in arctic tundra habitat. Ankle-high grasses and sedges have given way to a sea of woody shrubs growing to waist- or neck-deep heights. This shrubification of the tundra challenges animals like caribou that are adapted to low-stature arctic vegetation.