Conservation

View of river in Washington State surrounded by lush forest.

GAO: Washington State Slow on Clean Water Reporting

The Clean Water Act mandates reporting of ‘impaired waters’ to support conservation and restoration efforts.

December 19, 2023 - High Country News

View of wetlands with lilypads at dusk.

States Scramble in Wake of Clean Water Act Ruling

The removal of federal oversight of wetlands has left millions of acres unregulated and erected major hurdles for lawmakers seeking to protect them.

December 5, 2023 - Pew Stateline

Twilight view of San Gabriel Mountains with three tall palm trees in foreground and purpleish sky.

Feds Weigh Expansion of San Gabriel Mountains National Monument

The White House is sending a top-level cabinet member who oversees the U.S. Forest Service to the San Gabriel Valley east of Los Angeles to hear public comments on the proposed expansion the San Gabriel Mountains National Monument.

November 6, 2023 - Los Angeles Daily News

"Environmentall sensitive area" sign on rustic wooden fence with tall green grass in background.

Misuse of Environmental Laws Betrays Their Intent

How laws written to protect natural resources and biodiversity are being reinterpreted by NIMBY groups to block development.

October 24, 2023 - Governing

View of dark night sky with visible Milky Way over dark forest.

The Importance of Dark Skies

Why light pollution harms humans and the environment.

October 11, 2023 - The Daily Yonder

Wooden boardwalk through yellowed grass field with tall granite cliffs and waterfall in background in Yosemite National Park, California.

New Law Makes California's 30x30 Goal Official

Governor Newsom just signed SB 337, codifying the state's goal to conserve at least 30 percent of California's lands and coastal waters by the year 2030.

October 10, 2023 - Office of Governor Gavin Newsom

Lake in city park with ducks in foreground and city skyline across the lake in the background.

The Resiliency of Urban Wildlife

A wide-ranging research study highlights the various qualities that make animal species living in urban environments thrive—and how biodiversity improves the health of our cities.

September 19, 2023 - Wired

View of purple, orange, and yellow wildflowers on hillside during California superbloom

Celebrating and Protecting Biodiversity

Park and recreation agencies have an important role to play in safeguarding biodiversity. Learn more about how they contribute to the preservation of diverse ecosystems.

September 10, 2023 - National Recreation and Park Association Open Space Blog

Young male Tule elk stands on green outcrop with lake in background in California

Celebrating California's Biodiversity

This year marks the fifth annual California Biodiversity Day, established in 2018 to celebrate and encourage actions to protect the state’s exceptional biodiversity.

September 5, 2023 - California State Parks

Blackfoot memorial statue in Glacier National Park of Native American sitting on horse

Public Lands in the United States, Part Two: The Conservation Turn and ‘America’s Best Idea’

As Western expansion reached its geographic terminus, the U.S. government began tightening rules around land use and designating protected areas such as national parks and wilderness areas, often displacing local Native Americans.

July 17, 2023 - Diana Ionescu

Young bull moose stands in grassy field in Bridger-Teton National Forest

How Noise Pollution Impacts Nature

Overly loud noise isn’t just a public health risk for humans.

July 11, 2023 - High Country News

View of snowy San Gabriel Mountains from the Mojave desert

Growing Support for Expanding the San Gabriel Mountains National Monument

Members of Congress are proposing an expansion to the national monument by over 109,000 acres, increasing its size by nearly a third.

July 3, 2023 - NBC4.TV News

View from lakeside with green grass and pink blooming flowers

Who Benefits Most from Land Conservation Efforts?

A new study estimates that recent land conservation generated $9.8 billion in wealth nationally through the housing market and that wealthier and White households benefited disproportionately.

June 6, 2023 - PNAS

Looking up at giant sequoias in Mariposa Grove in Yosemite National Park at sunrise with sun's rays coming through trees

Public Lands in the United States, Part One: “Redeemed From Wilderness”

This is part one in a blog series examining the history of public lands in the United States and their shifting role in the American psyche.

May 31, 2023 - Diana Ionescu

View of wetlands in South Carolina at sunrise or sunset

Supreme Court Limits Clean Water Act’s Power

A recent ruling ‘dramatically’ restricts the law’s reach when it comes to protecting wetlands.

May 31, 2023 - Politico

A bale if hay is rolled up in an expansive agricultural landscape.

Conservation Easement Program Protects 100,000 Acres of Agricultural Land in New York State

A state famous for its largest city is making a concerted effort to protect agricultural lands as part of a larger national push.

May 9, 2023 - Governor Kathy Hochul

Aerial view of Eel River running through California forest

The Nation’s Most Endangered Rivers

An annual list from American Rivers highlights the waterways most at risk from climate change, poor water management, pollution, and other dangers.

April 19, 2023 - American Rivers

Herd of bison grazing in green field with snow-capped Wyoming mountains in background

Public Lands Rule Would Center Conservation

After decades of protecting extractive interests, federal law could reverse course and put conservation on par with other uses.

April 16, 2023 - High Country News

A view of the Pacific Ocean and California coastline from high in the Santa Monica Mountains.

California's Wildlife Conservation Board Funds Projects to Restore and Protect Habitats

The Wildlife Conservation Board (WCB) just approved approximately $51.83 million in grants to help restore and protect fish and wildlife habitat throughout California.

February 20, 2023 - California Department of Fish and Wildlife

Concrete walking and biking trail winding through trees and bushes

Data-Driven Effort to Re-envision Conservation and Prioritize Vulnerable Communities

The Los Angeles County Board of Supervisors has approved the 2022 Parks Needs Assessment Plus (PNA+), which focuses on environmental conservation and restoration, regional recreation, and rural recreation.

December 28, 2022 - National Recreation and Park Association Open Space Blog

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.

Professor of Urban Planning

Harvard University Graduate School of Design

Transportation Planner I

KFH Group Inc.

Director, Strategy and Research

Greater Baltimore Committee

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.