Adrienne L. Hollis, climate justice and health scientist Hollis' work: Hollis oversees the development and implementation of programs to measure and track the health impacts of climate change on communities of color and other "traditionally disenfranchised" groups at the Union of Concerned Scientists, according to the organization's website. She is developing new research to understand how climate change affects health and makes policy recommendations "to foster inclusiveness and greater benefits to underserved communities." (Read more here.) Photo courtesy Adrienne Hollis Adrienne Hollis, Senior Climate Justice and Health Scientist at the Union of Concerned Scientists The diversity she has observed in her career: Hollis began her research on "issues related to health effects from ozone exposure" more than 30 years ago, she says. "During that time, there was very little or no diversity in related industries or companies, and very little in academic studies in general."