As New York opens more legal outlets for recreational marijuana, some public health advocates want more scrutiny on how marijuana products are being marketed to teens and young adults.

In a rare move for philanthropy, Adam Holofcener and his family dedicate almost all of their organization’s remaining assets – $1 million – to a single project.

Researchers say efforts to remove carbon dioxide from the atmosphere aren’t being scaled up fast enough and can’t be relied on to meet crucial climate goals.

And Twitter isn’t the only site promoting content that scientists and environmental advocates say undercuts public support for policies intended to respond to a changing climate.