Salt Lake’s poor air quality, worst in the U.S. this week

Colorado tribal leaders ask Legislature for more collaboration in policymaking

EarthTalk - Is it true that plants communicate by sending chemical signals through the air?

Medical device manufacturer invests $110M to expand Nebraska plant, boost drug supply

Justice Department seeks interview with Representative Crow over illegal orders video

Far fewer people buy Obamacare coverage as insurance premiums spike

US Education Department delays plan to garnish wages of student borrowers in default

Curious Kids: What is below Earth, since space is present in every direction?