These areas, called cosmic masers, are rich in gas molecules that have the effect of strengthening radio waves.

VOA: special.2009.01.20

Reports blamed the effect of gas prices and interest rates on consumer spending.

FORBES: Wizardry At Wal-Mart

All told, this transition to more plentiful, diverse and widespread reserves in effect makes gas a bit more like coal, and a bit less like oil.

ECONOMIST: Unconventional gas

However, Dr Gedney's work is the first to identify a direct effect of that gas on ecosystems.

ECONOMIST: Climate change (I)