MADISON, Wisconsin, April 10 -- The University of Wisconsin Madison campus posted the following news: * * * UW grad and international climate reporter returns to campus as spring Science Journalist in Residence Alec Luhn's environmental reporting roots reach back to an assignment for The Badger Herald, during his days as a journalism student at the University of Wisconsin-Madison. Now an award-winning international freelance reporter, Luhn -- still on the environmental beat -- is returning to  more