martedì 31 marzo 2015

NYT Science: Gas Utilities Reduce Leaks of Methane, Study Finds

Gas Utilities Reduce Leaks of Methane, Study Finds
By JOHN SCHWARTZ

Researchers suggested that the reduction was largely a result of equipment upgrades, including replacement of leaky old cast-iron or unprotected steel pipe.

Published: April 1, 2015 at 06:00AM

via NYT Science http://ift.tt/1MvMGyf