About the Authors

Noel P. Gurwick


Affiliation Smithsonian Environmental Research Center. Edgewater, Maryland, United States of America

Lisa A. Moore

Affiliation Environmental Defense Fund, San Francisco, California, United States of America

Charlene Kelly

Affiliation Western Carolina University, North Carolina, United States of America

Patricia Elias

Affiliation Union of Concerned Scientists, Washington, District of Columbia, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NPG LAM PE. Analyzed the data: NPG LAM CK. Wrote the paper: NPG LAM.