Natural disasters (earthquake, tsunami, landslide, and volcanic eruptions) and weather related natural disasters (hurricane/cyclone, tornado, flood, drought) are occurring dramatically at increased frequency during the last decade, which is thought to be the result of climate change mechanisms. Extreme weather related disasters impacts include mobility and catastrophic failure of life line infrastructure. According to the U.S. National Oceanic and Atmospheric Administration (NOAA), 96 weather-related disasters have occurred in the U.S. over the past 30 years (from 1980-2009) in which overall damages/costs reached or exceeded one billion dollars per occurrence. About 60% of these disasters occurred in southeastern states. Population settlements in hazard prone locations expose large numbers of people to risk due to destruction of homes and disastrous failures of lifeline infrastructure including road and bridge network. Some examples of natural disasters follow which occurred during 2010-2011 around the world:
Infrastructure blog nat-disasters-global-may19-2011-pdf
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