New Tools for Gauging Estuarine Dynamics

Estuaries — vital nurseries for sea life in the Pacific Northwest — provide water filtration and habitat protection for the many species that live in and around them. To better understand how climate change will alter the dynamics of tides, winds, ocean waves and stream flows in these critical ecosystems, a new tool was designed…

Investigating Die-Offs of Western Woodlands

Western North American forests are experiencing a rapid increase in severe die-offs from droughts, insect attacks and fires. This increase in mortality has contributed to lumber mills closing, as well as to other, more far-reaching, economic impacts. Since 2013, OCCRI’s Forest Mortality, Economics, and Climate (FMEC) project has been studying the processes behind these die-offs….

Summaries for Policymakers Provide Guidance for Action

The Intergovernmental Panel on Climate Change (IPCC) just released the summaries for policymakers for the reports by Working Groups 2 and 3. They are highlighted below. (Last fall’s report from Working Group 1 was highlighted in the March 2014 issue of the CIRCulator.) Impacts, Adaptation, and VulnerabilityWorking Group 2 has created a practical “guide to action,” evaluating current…

Higher Waves Could Mean More Flooding and Erosion

Global and regional sea levels have been increasing because of melting land ice and because the oceans expand as they absorb heat. But it’s not just the average sea level that matters. Damage also is caused by a few hours of the highest waves in a decade. A study by Muyin Wang and colleagues using…

Wetlands Act as Powerful Carbon Sinks

Wetlands in the Pacific Northwest are recognized for providing a variety of ecosystem services ranging from fisheries production to mitigation of flood risk. Now, a new report suggests that estuaries play an important role in managing greenhouse gas emissions. The report, prepared for Restore America’s Estuaries, estimates that wetland losses due to historic land-use changes…