An initiative launched in mid-March by the American Association for the Advancement of Science (AAAS) aims to communicate to the public the reality, risks and need for a response to climate change. The What We Know initiative includes videos, a social media campaign and a report that communicates key scientific messages “for every American” about climate change. “We need to prepare for changes and slow down our emissions because we are heading for a blind curve,” states the narrator of the leading video on the site.