Morning Chronicle - Nature (English)

Common water disinfectant creates potentially toxic byproduct: study

A group of chemical compounds used to disinfect water for one-third of the US population and millions of others globally produces a potentially toxic byproduct, according to new research published Thursday, sparking calls for an "immediate" investigation into possible health impacts.

Fears rise of gender setbacks in global climate battle

As global climate negotiators seek to eke out progress, participants say they are witnessing backsliding in one unexpected area -- gender.