Last Updated: Friday, July 20, 2012, 15:47
It`s no laughing matter! Nitrous oxide commonly known as laughing gas may have brought the last great Ice Age to an end, a new research has found.
Last Updated: Friday, August 28, 2009, 10:33
Laughing gas or Nitrous Oxide (N2O) is the most abundant ozone-depleting substance in the 21st century as the emissions of CFC, another green house gas, has come down, a new study suggests.
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