A study of the natural cycle of mercury reveals that humans are to blame for a five- to sixfold increase in the oceanic concentrations of the potentially toxic element.
geochemistry
Donald J. DePaolo Receives 2014 Harry H. Hess Medal
Donald J. DePaolo was awarded the 2014 Harry H. Hess Medal at the AGU Fall Meeting Honors Ceremony, held on 17 December 2014 in San Francisco, Calif. The medal is for “outstanding achievements in research on the constitution and evolution of Earth and other planets.”
Defining Urban Geochemistry
International Association of GeoChemistry: Urban Geochemistry Working Group;
Columbus, Ohio, 5–6 August 2014
A Dearth of Hurricanes Cannot Explain Maya Collapse
Mud layers in a stalagmite from a cave on the Yucatán Peninsula show hurricane activity was steady or elevated throughout the Maya collapse.
Nearshore Internal Bores Increase Hypoxia Risk
Researchers head to the field to investigate the causes of low-oxygen waters in coastal aquatic environments.
What Happens to Minerals as They Get Squeezed in the Mantle?
Researchers test how different minerals found in the Earth’s mantle respond to high temperatures and pressures.
