The Ashland Public Library is hosting a documentary series on climate change starting Thursday and continuing June 26. The first film to be screened is “Heat: A Global Investigation,’’ and the second will be “On Thin Ice.’’ Both films will be shown at 7 p.m. in the library's community room. Admission is free; viewers are invited to stay afterward for a discussion of the films. For more information, call the library at 508-881-0134.