The salt line on the Delaware is 20 miles north of where it should be this time of year. Should we be worried?

Dutch researcher and tree expert Hans ter Steege is the founder of the Amazon Tree Diversity Network, which brings together ...

The invasive sea lamprey was chomping through the North American region’s native fish, until scientists made a fortuitous discovery.

A study modelling the impact of melting ice suggests scientists have underestimated the risk that an important ocean current ...