• Celebrate World Water Day with cold brews with the Oregon Environmental Council and Environment Oregon, 4:30 p.m., hosted by Willamette Partnership and Salmon Safe, Hopworks Urban Brewery, 2944 S.E. Powell Blvd.
• Have an ice cream sundae and talk about the future of the Hillsboro Airport, 5 to 8 p.m., Hillsboro Brookwood Library, 2850 N.E. Brookwood Parkway. www.portofportland.com
• Gather with the Hummingbird Global Writers' Circle for a discussion involving Portland publisher/writer Laura Stanfill (Forest Avenue Press), Broadway Books co-owner Sally McPherson, authors Dan Berne ("The Gods of Second Chances") and Deborah Reed ("The Days When Birds Come Back") and writer-coach Jen Violi, 7 to 8:30 p.m., Broadway Books, 1714 N.E. Broadway. www.broadwaybooks.net
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