Earth Day panelists believe cleaner air, water, energy momentum is irreversible

“Forty-seven years ago, on April 22, 1970, we celebrated the inaugural Earth Day, and the New York Times cover read:  “Millions Join Earth Day Observances Across the Nation.”  Closing in on five decades later, Earth Day is an international observance and global sustainability issues are constantly in the news,” Kirk Heinze says on Greening of…