Intrusion of saltwater into coastal groundwater can make water there unusable, damage ecosystems, and corrode infrastructure.

One Earth satellite can see plankton that photosynthesize. 

A new NASA-led study has found that how rain falls in a given year is nearly as important to the world’s vegetation as how much. 

The chemicals known as PFAS are considered a severe threat to human health. 

New study shows seal moms prefer slow and steady icebergs, while seals prefer faster ice in better foraging grounds later in the year.

A University of Queensland-led study shows greenhouse gas emissions from tourism have been growing more than 2 times faster than those from the rest of the global economy.

A breakthrough in the theory of climate change science has given scientists the most robust way yet to link observed climate change to both human-made and natural causes and to spot early warning signals for potential climate disasters. 

After storing carbon dioxide in frozen soil for millennia, the Arctic tundra is being transformed by frequent wildfires into an overall source of carbon to the atmosphere, which is already absorbing record levels of heat-trapping fossil fuel pollution.

Large-bodied migratory species such as Atlantic salmon are thriving as warming temperatures opens up new habitats at the poleward edge of their ranges.

Periods of sudden melting in the Antarctic ice sheet have been unearthed in a new climate record from over 20 million years ago by geoscientists led by the University of Leicester and the University of Southampton.