Jason Mark

Jason Mark was the editor in chief of Sierra from 2015 to 2024. He is the author of Satellites in the High Country: Searching for the Wild in the Age of Man, and he's currently working on a new book about shifting baseline syndrome. Find him on Bluesky.

How to Calculate the Value of Wild Nature? Count the Selfies.

By Jason Mark September 21, 2016

In this story: national parks, lifestyle, saving wild places, wilderness

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President Obama Uses His Pen to Establish the Maine Woods National Monument

By Jason Mark August 24, 2016

In this story: national parks, America's National Parks

North Woods

Backcountry Bookshelf

A suggested reading list for the National Park Service centennial.

By Jason Mark August 12, 2016

In this story: America's National Parks, national parks, books

Backcountry bookshelf

Young People Wage Unprecedented Lawsuit Over Climate Change

Government inaction on climate change violates young people's constitutional rights

By Jason Mark September 6, 2016

In this story: climate change, politics, education, activism

The Our Children's Trust plaintiffs and allies at the federal courthouse in Eugene, Oregon.

Check Out This Unbelievable Photo of the Southern California Wildfire

By Jason Mark July 29, 2016

In this story: wildfire

Sand fire

If You Build It, They Will Come

The case for critter corridors

By Jason Mark July 22, 2016

In this story: wildlife

Critter crossing

Oakland Defeats Proposed Coal Port While Bay Area Continues Exports

Residents complain coal trains, dust threaten public health

By Jason Mark July 6, 2016

In this story: coal, dirty energy, clean energy, environmental justice

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In Conversation With Helen Macdonald

The author of H Is for Hawk discusses the craft of nature writing during a hike through the California redwoods

By Jason Mark June 8, 2016

In this story: books, birds, lifestyle

The author of H Is for Hawk discusses the craft of nature writing during a hike through the California redwoods

The Majesty of Pigeons

Nathanael Johnson's Unseen City is a field guide to urban wilderness

By Jason Mark June 6, 2016

In this story: books, lifestyle, urban living

Nathanael Johnson's Unseen City is a field guide to urban wilderness

Hiking Through the California Redwoods With British Author and Naturalist Helen Macdonald

A short profile of Helen Macdonald, author of H Is for Hawk

By Jason Mark June 6, 2016

In this story: birds, books, lifestyle

Naturalist and writer Helen Macdonald takes a breather in a redwood grove while on a book tour.