A nalysis of nitrogen isotope ratio in coral skeletons shows strong decadal oscillations in the size of the world's largest oxygen-deficient zone (ODZ) over the last 80 years. These findings imply ...

Isotope analysis of limestone cave deposits indicates repeated humid periods in the Saharo-Arabian Desert over the past eight ...

Mineral deposits in limestone caves show that the now arid interior of Saudi Arabia repeatedly experienced increased rainfall ...

Photo Credit: NASA Oxygen-starved ocean “dead zones,” where fish and animals cannot survive, have been expanding in the open ocean and coastal waters for several decades as a result of human ...

Learn about the ancient rhinos that lived and died together in Nebraska in the Middle Miocene.

Isotope analyses of limestone cave deposits reveal recurrent humid intervals in the Saharo-Arabian Desert over the last eight ...