"Science is no longer about the quest for knowledge. Now it's about fixing problems. But just limiting science to fixing problems also limits your chances of making big discoveries."
A group of environmental activists hold a traditional ceremony during an event called Marry a Tree, in the community of San Jacinto Amilpas, Mexico, on February 25th, 2018.
An initial review of rules issued by the Interior Department shows the federal government has taken important steps to protect drinking water resources, while not adopting the strictest regulations in place in some states.