Tree rings and arroyos

A new GSA Bulletin study uses tree rings to document arroyo evolution along the lower Rio Puerco and Chaco Wash in northern New Mexico, USA. By determining burial dates in tree rings from salt cedar and willow, investigators ...

Buzzing with activity: Fruit flies orbit Earth for science

If the International Space Station ever starts a "frequent flyers" program, fruit flies surely would be eligible for platinum status. Recently the orbiting laboratory has hosted increasing numbers of fruit fly research studies. ...

Ocean-threatened Marshall's leader posts climate video plea

Marshall Islands President Christopher Loeak was forced to heighten the seawall protecting his home last year, but says the year-old defences are now barely enough to protect his family from a "climate emergency".

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