Register to take part in the 61st Presque Isle Cleanup on Saturday.

Tara Houska, an Ojibwe from Couchiching First Nation, will speak on environmental justice and the Dakota Access Pipeline Monday at 7 p.m. in Mercyhurst University's Taylor Little Theatre. It's free and open to the public, and part of the Sister Maura Smith Earth Day Lecture series 

Celebrate the honorees of Preservation Erie's fifth annual Greater Erie Awards Thursday from 5:30-8 p.m. at the Masonic Temple Ballroom, 32 W. Eighth St. Cost is $25 per person at http://bit.ly/2pmbTp2

Matthew Sandusky, son of former Penn State football coach Jerry Sandusky, will appear at 6:30 p.m. Thursday at Hirt Auditorium, Blasco Library, for the Crime Victim Center of Erie County's Victims' Rights Speaker Series. The event is free, but there is limited seating. Registration is required at http://bit.ly/2oZbCpi

Take part in the 61st Presque Isle Cleanup on Saturday from 8 a.m. until noon. Register and get gloves from 8-10 a.m. at the Rotary Pavilion. Lunch will be served from 10 a.m. until noon. Free, but online registration is required at http://bit.ly/2pLESjf

Get to Hirt Auditorium at Blasco Library on Sunday at 1:30 p.m., kemosabe, for a free showing of "The Lone Ranger," starring Johnny Depp. It's the latest title in the monthly Blasco Film Series.