A scientist who extols the controversial concept of collaboration with big corporations and agribusiness to promote environmental sustainability and habitat restoration will be the speaker at this year’s Jane and Whitney Harris Lecture. The event will begin at 7:30 p.m. on April 3 in the Ridgeway Center’s Schoenberg Auditorium at the Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis. The lecture is free and open to the public.