The United States has endured its hottest summer on record, a new peak that scientists said should send alarm bells ringing over the increasingly dire impacts of climate change.

The contiguous United States endured its hottest summer since modern records began, the National Oceanic and Atmospheric Administration said Wednesday, in the latest sign of a…

Estados Unidos vivió su verano más caluroso en 132 años impulsado por el cambio climático y el fenómeno de El Niño.