Chloroarenes

Decades after manufacturers have stopped producing a class of harmful chemicals once used in electrical equipment, traces of these chemicals have found in a deep sea trench.Lower Drought Conditions In California | Extreme EarthIn a study published in Nature Communications, researchers report detecting PCB chemicals at the bottom of the Atacama Trench off the coast of South America. During an expedition in 2018, a team retrieved sediment cores from fivelocations along the trench. The depths for these samples ranged from…

A patient sits in their home with ketamine tablets, provided through the company Mindbloom.Photo: ED JONES/AFP (Getty Images)Around 2.8 million Americans suffer from treatment-resistant depression, and though research has shown that IV ketamine can significantly improve their quality of life, these ketamine treatments are expensive, and access to them is limited. Early in the covid-19 pandemic, the Drug Enforcement Agency loosened restrictions on remote prescribing for Schedule III medications like ketamine. In response,…