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"28 March 2014 (AP) The National Weather Service says Seattle has already logged the wettest March since record-keeping started back in the 1890s and more rain is forecast through Monday."
Climate change and the Oso WA mudslide, extreme weather makes deadly results - National Environment | Examiner.com
David Herron
March 24, 2014
<snip>
In May 2011 the Union of Concerned Scientists issued a press release discussing how climate change contributes to heavy rainfall. The mudslide in Oso, WA, was clearly caused by heavy rainfall. According to UCSUSA, carbon emissions in the atmosphere traps heat, and the rising heat causes more water evaporation from oceans, land and plants. As the atmosphere warms it can hold more moisture, meaning that when rainfall does occur "there is more water vapor available in the atmosphere to fall as rain, snow or hail."
As a result, U.S. Global Change Research Programs (USGCRP) scientists have observed "less rain falling in light precipitation events and more rain falling in the heaviest precipitation events across the United States." Or, put another way, when it rains it pours. Heavily.
The UCSUSA press release closed discussing the economic cost of flooding, and the Oso, WA, landslide demonstrates the high cost of climate change. To mitigate landslide risk governments work to shore up hillsides, like the WSDOT project just completed. Governments would also be tempted to build more storm drains, levees, dams and the like. Then there is the direct economic cost, destroyed homes or cities, highways wiped out, and lives lost or disrupted.
<snip>
.
"28 March 2014 (AP) The National Weather Service says Seattle has already logged the wettest March since record-keeping started back in the 1890s and more rain is forecast through Monday."
Climate change and the Oso WA mudslide, extreme weather makes deadly results - National Environment | Examiner.com
David Herron
March 24, 2014
<snip>
In May 2011 the Union of Concerned Scientists issued a press release discussing how climate change contributes to heavy rainfall. The mudslide in Oso, WA, was clearly caused by heavy rainfall. According to UCSUSA, carbon emissions in the atmosphere traps heat, and the rising heat causes more water evaporation from oceans, land and plants. As the atmosphere warms it can hold more moisture, meaning that when rainfall does occur "there is more water vapor available in the atmosphere to fall as rain, snow or hail."
As a result, U.S. Global Change Research Programs (USGCRP) scientists have observed "less rain falling in light precipitation events and more rain falling in the heaviest precipitation events across the United States." Or, put another way, when it rains it pours. Heavily.
The UCSUSA press release closed discussing the economic cost of flooding, and the Oso, WA, landslide demonstrates the high cost of climate change. To mitigate landslide risk governments work to shore up hillsides, like the WSDOT project just completed. Governments would also be tempted to build more storm drains, levees, dams and the like. Then there is the direct economic cost, destroyed homes or cities, highways wiped out, and lives lost or disrupted.
<snip>
.