When: 8:30 a.m. to 5 p.m. Thursday, 8 a.m. to 4 p.m. Friday.
Where: Minnesota Landscape Arboretum. Hwy. 5, Chanhassen.
Key feature: 18th annual Kuehnast Lecture, 7 p.m. Thursday. Free.
"Strengths and Weaknesses of Different Climate Models," Dr. Ben Santer, Lawrence Livermore National Laboratory. "Climate Services for Society: Challenges and Opportunities," Dr. Eileen Shea, chief of climate services division, National Climatic Data Center, National Oceanic and Atmospheric Administration.
To register, call 952-443-1422.
Note: Full summit admission is $60. For a full agenda, go to www.bit.ly/atLcnS.