The Salem Progressive Film Series has partnered with the Straub Environmental Learning Center for their February 10 screening of “Dirt! The Movie.”

The documentary tells the story of the relationship between people and living dirt. “Dirt feeds us and gives us shelter; holds and cleans our water; heals us and makes us beautiful; regulates the earth’s climate. Dirt is the ultimate natural resource for all life on earth.”

The guest speaker at the series will be Professor James Cassidy of the Soil Physics and Organic Agriculture from Oregon State University. Cassidy uses the film as part of the his class curriculum.

The show starts at 7 p.m. at the Grand Theatre, 191 High St. Doors open at 6:15 p.m. Tickets are $4 for adults and $3 for students.

For the Straub Environment Learning Center’s part, they’ll be holding a lecture with Professor David Montgomery from the Earth and Space Sciences at the University of Washington. Montgomery is both a geomorphologist and environmental author who has discovered that the “three foot deep skin of our planet is being slowly eroded away and we are in danger of suffering the same fate as the fallen empires of Mesopotamia, Ancient Greece, and Rome.”

He’ll be speaking on February 24 in his lecture “Dirt: The Erosion of Civilizations.” All lectures are free and open to the public and are hosted at the Salem Public Library in Loucks Auditorium at 7 p.m. For more information, visit fselc.org.