tokens: Acknowledgments This manuscript was begun while the author was a visitor at the Center for Space and Habitability at the University of Bern, Switzerland. The author thanks Ray Pierrehumbert for a stimulating conversation that eventually sparked this work and Daniel Kitzmann for a discussion of hazes.
ner_tags: O O O O O O O O O O O O O B-Organization I-Organization I-Organization I-Organization I-Organization O O B-Organization I-Organization I-Organization B-Location O O O B-Person I-Person O O O O O O O O O O B-Person I-Person O O O O O