Krista S. Walton (BSE, CE, '00), an alumna of UAH will return to the university as a distinguished speaker to give a public talk on Friday, Jan. 30. Walton's seminar "Engineering Next-Generation Materials for Environmental and Energy Applications," will be presented at 10 a.m., in the Charger Union Theater. The distinguished speaker seminar is sponsored by the UAH College of Engineering. The talk is free and open to the public.