Elwha Dam (former) on the lower Elwha River, WA
#ThisIsClimateChange Dams contribute to climate change, as explained in this Washington State University press release: http://www.eurekalert.org/pub_releases/2012-08/wsu-ang080612.php. Basically, aside from the carbon emissions from dam construction, there is an initial "carbon pulse" from filling a dam, when the impoundment area's plant life is engulfed and decomposes, and then there is an ongoing emission of methane that is developed within the reservoir, as carbon dioxide is converted by plants and decomposed in the water column. This methane is released by changing water levels as the reservoir is managed for energy production.
This dam is the Elwha Dam. Rather, it *was* the Elwha Dam. The Elwha River now flows freely through the reservoir area and former dam site, taking decades of built-up sediment downstream with it. That sediment has reconstructed the Elwha estuary into the Straight of Juan de Fuca, bordering with Canada to the north. The river itself is undergoing restoration efforts by the Park Service: https://www.nps.gov/olym/learn/nature/elwha-ecosystem-restoration.htm.
National Geographic has a great news article on the demolition of this and the upper, larger, Glines Canyon Dam: http://news.nationalgeographic.com/news/2014/08/140826-elwha-river-dam-removal-salmon-science-olympic/.
This is a great time-lapse video of both dams being de-constructed: https://youtu.be/m96VcCF4Ess.
- Climate Photography
- Image Size
- 4912x7360 / 6.2MB
This Is Climate Change Climate Photography Joshua Ruschhaupt photography 2016 Nikon Nikon lens Nikkor Lexar Lexar memory card energy power electricity grid turbine water impoundment reservoir dam Elwha Lake Aldwell drained sediment decommission remove removal river recreation fish endangered species endangered climate change global warming Washinton WA sky cloud blue white green grass tree restoration reclamation restore Strait of Juan de Fuca
- Contained in galleries
- Lower Elwha River Dam Post-Decommission