hydrogen train

Two white and red Stadler electric Caltrain trains next to each other on a sunny day.

Which US Rail Agencies Are Buying Zero-Emissions Trains?

U.S. rail agencies are slowly making the shift to zero-emissions trains, which can travel longer distances without refueling and reduce air pollution.

March 30, 2025 - Smart Cities Dive

Blue and white Zero-Emission Multiple Unit (ZEMU) hydrogen-powered train in San Bernardino, California.

Hydrogen-Powered Train to Launch in Southern California

The 9-mile rail line could be a welcome breath of fresh air for one of the region’s most polluted communities.

September 5, 2024 - The Guardian

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.