CRYSTAL LAKE – The public is invited to Green Drinks McHenry County from 5 to 7 p.m. Wednesday at Duke’s Alehouse & Kitchen, 110 N. Main St.

Dr. Jim Halfpenny from Gardiner, Mont., will present “The Last Cold.” Halfpenny was most recently in the Arctic in August and will share information on how this region is being affected by climate change.

Halfpenny’s 40-plus year career has included stints with the Institute of Arctic and Alpine Research, and has taken him to both polar regions and the high mountains around the world.