As agriculture intensified in the 20th century, summers in the Midwest became wetter and cooler. Researchers at MIT, in a study published this month, looked at whether vegetation from crop production, rather than the greenhouse gas emissions that are an established source of climate changes, could have driven these regional impacts.
For the more than 3,000 students at Marjory Stoneman Douglas High School, Wednesday's mass shooting was terrifying and life-changing. But what of the tens of millions of other children, in schools across the country, who have since heard about what happened and now struggle with their own feelings of fear, confusion and uncertainty?
This week in the Russia investigations: A major new indictment from the special counsel's office that charges thirteen individuals and three companies and shakes up the political rhetoric as new facts are revealed in the sprawling imbroglio.