Articles and Documents
Transportation Methods, Greenhouse Gas Emissions, and the Lower Snake River Reservoirs
January 2017 By John Twa, Mechanical Engineer The four lower Snake River locks and dams were completed in the 1960’s and 1970’s after congressional authorization to provide river navigation to eastern Washington and Lewiston, Idaho. Each of the four, 100 foot high dams created flatwater reservoirs with sufficient depth to
Estimate of Greenhouse Gas Emissions for the Lower Snake River Dams and Reservoirs using the All-Res Modeling Tool
By Tell The Dam Truth, Inc. The four Lower Snake River dams, reservoirs, and their hydropower systems (“LSR dams”) – Lower Granite, Little Goose, Lower Monumental, and Ice Harbor – in the state of Washington have been at the center of national controversy in recent months. Because the dams block
Evaluating greenhouse gas emissions from hydropower complexes on large rivers in Eastern Washington
March 2013 By EV Arntzen • S Niehus • BL Miller • M Richmond • AC O’Toole Inland water bodies, such as freshwater lakes, are known to be net emitters of carbon dioxide (CO2) and methane (CH4). In recent years, significant greenhouse gas (GHG) emissions from tropical, boreal, and mid-latitude
Methane Ebullition in Temperate Hydropower Reservoirs and Implications for US Policy on Greenhouse Gas Emissions
July 2017 By Benjamin L. Miller ● Evan V. Arntzen ● Amy E. Goldman ● Marshall C. Richmond The United States is home to 2198 dams actively used for hydropower production. With the December 2015 consensus adoption of the United Nations Framework Convention on Climate Change Paris Agreement, it is
Update: The Lower Snake River Reservoirs Generate Significant Amounts of Methane, a Potent Greenhouse Gas
July 2020 By John Twa, Mechanical Engineer Scientists are increasingly studying and recognizing the significant amount of greenhouse gas (GHG) emissions from hydropower reservoirs. “[N]umerous studies have demonstrated that hydropower reservoirs have the potential to produce high amounts of [methane], despite initially being considered carbon-free energy sources”. In fact, ten