This story originally appeared on Grist and is part of the Climate Desk collaboration. On a hot summer day in New York City last July, Ajohntae Dixon was studying at home when he began struggling to breathe. With no air conditioning in his apartment, the temperature inside surged, and the 15-year-old’s gasping quickly progressed into a full-blown asthma attack […]

On the second day of the Second International Summit on Human Genome Editing, the last session before lunch was already running long. But the crowd crammed into the Lee Shau Kee Lecture Centre at the University of Hong Kong wasn’t budging. Neither were the 5,500 people around the world glued to their live video feeds. […]

This story was originally published in October 2017, in the aftermath of the Napa Fire. We’ve updated it with details on the Camp, Hill, and Woolsey Fires. Friday morning, residents in the Bay Area and parts of Los Angeles County woke up to a blood-red sunrise, the smell of scorched timber and an Apple weather […]