To save lives among our older population, air pollution needs to be reduced even below EPA regs. (AP Photo/J. David Ake)Nearly 66,000 early deaths would be prevented each year if U.S. air pollutant concentrations of three major contributors — fine particulate matter, ozone and nitrogen dioxide — were reduced from the 70th to the 60th percentile, according to a recent study led by a Harvard University researcher.Enter code here  Nearly 66,000 early deaths would be prevented each year if U.S. air pollutant concentrations of three major contributors — fine particulate matter, ozone and...…To save lives among our older population, air pollution needs to be reduced even below EPA regs. (AP Photo/J. David Ake)Nearly 66,000 early deaths would be prevented each year if U.S. air pollutant concentrations of three major contributors — fine particulate matter, ozone and nitrogen dioxide — were reduced from the 70th to the 60th percentile, according to a recent study led by a Harvard University researcher.Enter code here  Nearly 66,000 early deaths would be prevented each year if U.S. air pollutant concentrations of three major contributors — fine particulate matter, ozone and...WW…

It's not just a Heinlein theory anymore, a space elevator might happen! (Pixabay/Michael Hiraeth)With one end of a steel cable hovering in Earth's orbit and the other end somewhere in outer space, the concept of a futuristic floating "space elevator" promises to amplify humans' ability to explore the universe — and scientists engineering an improved take on the 19th-century idea say the one-time fantasy is close to becoming a reality.Verification code  With one end of a steel cable hovering in Earth's orbit and the other end somewhere in outer space, the concept of a futuristic...…It's not just a Heinlein theory anymore, a space elevator might happen! (Pixabay/Michael Hiraeth)With one end of a steel cable hovering in Earth's orbit and the other end somewhere in outer space, the concept of a futuristic floating "space elevator" promises to amplify humans' ability to explore the universe — and scientists engineering an improved take on the 19th-century idea say the one-time fantasy is close to becoming a reality.Verification code  With one end of a steel cable hovering in Earth's orbit and the other end somewhere in outer space, the concept of a futuristic...WW…