Climate Change, Extreme Weather Linked In Studies Examining Texas Drought And U.K. Heat

* 2011 was among 15 warmest years globally - U.S. agency

* Extreme weather events show influence of climate change

* Greenhouse gas levels in atmosphere reaches new high

By Deborah Zabarenko

WASHINGTON, July 10 (Reuters) - Climate change increased the odds for the kind of extreme weather that prevailed in 2011, a year that saw severe drought in Texas, unusual heat in England and was one of the 15 warmest years on record, scientists reported on Tuesday.

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