Carbonate standards ensure better paleothermometers

The climate of ancient Earth left telltale signs in the geochemical record. On the basis of chemical properties of carbonate minerals, scientists can calculate a site's temperature hundreds of millions of years ago. Such ...

Preparing protocols for making deuterated biomolecules

Neutron techniques are good for studying light atoms like hydrogen—great for biological molecules that contain large numbers of them. Neutrons are particularly sensitive to isotopic substitution of hydrogen (1H) with deuterium ...

Groups plan lawsuit following Columbia Basin salmon die-off

Three environmental groups and two commercial fishing advocacy groups say they will file a lawsuit against the federal government over heat-related fish kills in the Columbia River Basin in the Pacific Northwest.

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