emissions

By Tina Hilding, Voiland College of Engineering & Architecture PULLMAN, Wash. – A team led by Washington State University researchers has found that methane emissions from local natural gas distribution systems in cities and towns throughout the U.S. have decreased in the past 20 years with significant variation by region. 

By Tina Hilding, College of Engineering & Architecture YAKIMA, Wash. – A new Washington State University study has found that a combination of agricultural emissions, human-based activity – like running car engines and burning woodstoves – and cold, still winter nights adds up to poorer air quality in the Yakima Valley than in much of […]