Saint-Gaudens National Historic Site in Cornish, New Hampshire, is hosting a presentation on the effect of climate change on historical sites. The discussion is scheduled for Tuesday, June 10 at 6 p.m. It will look at how New Hampshire's archaeological resources, historic buildings and cultural landscapes are affected and threatened by sea level rise, coastal erosion, increased flooding, heavy rains and insect infestations. Superintendent Rik Kendall of Saint-Gaudens, along with Mary Kate Ryan and Edna Feighner from the New Hampshire Division of Historical Resources, will address the potential effects that climate change may bring at the historic site.