sentences:  As director of the graduate educational program in Resilience and Adaptation at the University of Alaska, Fairbanks, Chapin studies human-fire interactions in the boreal forest.As President of ESA, he plans to address the "critical issue" of planetary stewardship.With Mary Power and Steward Pickett, Chapin is leading a Planetary Stewardship initiative “whose goal is to reorient society toward a more sustainable relationship with the biosphere.”