Science Journalist Hillary Rosner Explores the Urgent Need for Wildlife Connectivity in New Book, “Roam”

Award-winning science journalist Hillary Rosner’s new book, “Roam: Wild Animals and the Race to Repair Our Fractured World,” delves into the critical issue of habitat fragmentation and its impact on animal movement. Published in 2025, the book examines how human infrastructure – from roads and cities to farms and even greenhouse gas emissions – creates barriers for wildlife, and explores potential solutions for reconnecting ecosystems.

From New York City to Colorado: A Career Dedicated to Environmental Storytelling

Rosner, currently the assistant director of the Center for Environmental Journalism at the University of Colorado Boulder, brings decades of experience to the topic. Her work has appeared in prominent publications including The New York Times, National Geographic, Wired, and The Atlantic. She began her journalism career as a cub reporter at the New York Post, later holding editorial positions at The Village Voice and New York Magazine.

The Inspiration Behind “Roam”

The seed for “Roam” was planted in 1999, when Rosner encountered a coyote in Central Park while living in New York City. This sparked her interest in the concept of wildlife corridors and the importance of connectivity. Further research, including a 2018 study revealing a global decline in animal movement due to human impact, solidified her resolve to explore these ideas in a book.

Climate Connectivity and the Challenges of Conservation

Rosner’s research led her to Costa Rica, a country often lauded for its conservation efforts. However, she discovered that even in a nation committed to protecting biodiversity, challenges remain in ensuring animals can navigate a landscape reshaped by human activity. The book explores the concept of “climate connectivity,” recognizing that as the climate changes, animals will need to move to find suitable habitats, and that human-created barriers can impede these essential journeys.

A Broadened Understanding of Connectivity

Rosner’s exploration of connectivity extended beyond the physical movement of animals. She came to understand the importance of ecological connectivity – maintaining intact ecosystems – as well as hidden forms of connectivity, such as underground water flows. Importantly, she also recognized the interconnectedness between social justice issues and environmental challenges, noting how historical inequalities can impact infrastructure and, animal movement.

Hopeful Solutions for a Fractured World

Despite the daunting challenges, “Roam” ultimately offers a hopeful message. Rosner highlights the work of individuals and organizations around the world dedicated to reconnecting ecosystems and creating a more hospitable planet for all species. She encourages readers to consider the world from an animal’s perspective, asking how human actions impact their ability to thrive.

Education and Background

Rosner holds an MS in Environmental Studies from the University of Colorado Boulder, an MFA in Creative Writing from New York University, and a BA in American Studies from Wesleyan University. She is also a Knight Science Journalism Fellow at MIT, an Alicia Patterson Fellow, and a Ted Scripps Fellow.