Diana is a writer and urbanist passionate about public space, historical memory, and transportation equity. Prior to joining Planetizen, she started and managed a farmers' market and worked as a transportation planner in the bike share industry. She is Planetizen's editor as of January 2022.
How the Urban Tree Canopy Can Save Lives in a Heat Wave
New research reveals the direct link between planting more trees and a reduction in heat-related deaths.
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.
The Bicycle as Economic Lifeline
For many low-income households, bikes offer an affordable way to access more destinations and economic opportunities.
Lyft Shifting to Docked E-Scooters
After failing to deliver on promises of frictionless, free shared mobility, the operator will begin docking its scooters at stations to reduce sidewalk obstructions and eliminate the need to collect scooters for recharging.
City Requiring Permits for Twitter’s Dystopian Office Bedrooms
After a Forbes article revealed dozens of makeshift sleeping areas in Twitter’s downtown San Francisco offices, the city is asking the company to file for permits if they want to keep them.