Emissions Reductions

View of Los Angeles skyline at sunrise with yellow and green trees in foreground

LA’s Trees Absorb More Carbon Than Expected, But Can’t Do It Alone

A USC study finds that Los Angeles’ urban trees absorb more carbon than expected, but while they provide crucial environmental benefits, they cannot replace the urgent need for systemic emissions reductions.

February 28, 2025 - Phys.org

View of cars in traffic from behind with visible tailpipe emissions

Report: 14 States Increased Per-Capita Carbon Emissions

Many of the states on the list are red-leaning states that fought against federal environmental reporting regulations.

November 20, 2024 - Streetsblog USA

Close-up of food waste inside a black plastic compost bin.

Massachusetts Has the Nation’s Only Successful Food Waste Ban

The state has reduced its methane emissions by 25.7 percent per ton of waste following a law that seeks to eliminate food waste from landfills.

September 13, 2024 - Fast Company

Close-up of fleet modern electric EV delivery vans being charged in covered parking garage.

USDOT Unveils Strategies to Achieve Near-Zero Transportation Emissions

Three key strategies — reducing travel distances, increasing energy-efficient travel modes, and transitioning to zero-emission vehicles and fuels — are recommended to meet national climate goals under the Paris Agreement.

July 15, 2024 - Smart Cities Dive

Honolulu public bus.

Youth Activists Secure Landmark Climate Agreement for Zero Emissions in Hawaii

The unprecedented climate settlement compels the state's transportation department to achieve zero emissions by 2045, marking a significant victory for climate justice and constitutional rights.

July 8, 2024 - The Guardian

Pennsylvania

Pittsburgh Regional Transit Launches First Ever Climate Action Plan

In addition to reducing emissions, the agency officials hope the climate action plan will help increase ridership and boost their competitiveness when applying for federal transit funding.

May 8, 2024 - WESA

View of multistory buildings under construction in downtown Seattle, Washington with Space Needle and Mount Rainier in background.

Seattle Passes Building Emissions Law

The law calls for buildings larger than 20,000 square feet to eliminate fossil fuels by 2050.

December 25, 2023 - Governing

Walkways and escalator at crowded transit station, with one person walking a bike in foreground.

10 Best, Worst States for Climate-Friendly, Equitable Transportation

California and Kentucky bookend a recent ranking of how well states are using federal infrastructure money to address climate change and racial inequities in their transportation networks.

December 12, 2023 - Route Fifty

Close-up of driver's side of silver truck with cloud of dirty emissions from tailpipe.

FHWA Issues Emissions Tracking Rule

The agency will require states to monitor transportation emissions and create plans to address air pollution.

November 28, 2023 - Route Fifty

View of Austin, Texas skyline with river in foreground

How Housing Density Could Help Austin Reach Climate Goals

With housing and transportation as the two biggest sources of carbon emissions, a new report shows how boosting density near transit would accelerate emissions reductions.

October 17, 2023 - Austin Monitor

View of field of blooming orange poppies in Antelope Valley, California

California to Invest $750 Million in 16 ’Jobs-Rich’ Areas

California is funding a sweeping package of investments expected to deliver big benefits in housing affordability and greenhouse gas emission reductions.

September 4, 2023 - California Department of Housing and Community Development

renewable Energy

Offshore Wind Power Projects Face Financial Headwind

As offshore wind projects along the East Coast stall, so do the country’s emissions reduction goals.

July 27, 2023 - Politico

Washington D.C. Protest

IPCC Report: The World Is Running Out of Time on Climate Change

The planet is not doing enough to reduce greenhouse gas emissions, according to a recent report published by the United Nations’ International Panel on Climate Change (IPCC).

March 20, 2023 - International Panel on Climate Change

Close-up of line of cars at electric vehicle charging station

Virginia Ties Clean Car Standards to California

The last obstacle to a 2021 bill linking Virginia’s emissions standards to California policy was defeated on a party-line vote in the state’s legislature, paving the way for a shift to electric vehicles.

February 16, 2023 - The Virginia Mercury

Aerial view of downtown Denver, Colorado with freeway in foreground

Colorado Emissions Reduction Plan Ties Sustainable Transportation to State Funding

The state’s Greenhouse Gas Planning Standard uses tangible financial penalties to prioritize transportation projects that reduce emissions.

February 6, 2023 - TransitCenter

Parked electric scooters on a sidewalk with person walking bike in the background

Small Modes Are Beautiful!

Active modes (walking, bicycling and their variants) and micromodes (e-bikes and e-scooters) can provide large climate emission reductions and other important benefits, if we let them. Small modes are important but often undercounted and undervalued.

January 13, 2023 - Todd Litman

View of cars in traffic from behind with visible tailpipe emissions

Federal Plan Takes Aim at Transportation Emissions

The U.S. National Blueprint for Transportation Decarbonization is designed to guide federal investment and regulations, focusing on electrification with a nod to transit investment and walkability.

January 10, 2023 - The Washington Post

View of cars in traffic from behind with visible tailpipe emissions

Comprehensive Transportation Emission Reduction Planning

Many jurisdictions have ambitious greenhouse gas emission reduction targets and are developing plans to achieve them. This column discusses the factors that should be considered in this planning process.

November 17, 2022 - Todd Litman

The High Cost of Free Parking

The United Nations Calls on U.S. Planners to Break Land Use, Transportation Status Quo

“We are on a highway to climate hell with our foot on the accelerator.”

November 13, 2022 - Greater Greater Washington

Bunker Hill, Charlestown

Tracking Boston’s Emissions Reduction Progress

The Boston Foundation published the “Inaugural Boston Climate Progress Report” earlier this month. Other U.S. cities should follow their lead.

November 10, 2022 - The Boston Foundation

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.

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.