Why light pollution harms humans and the environment.

A Q&A in the Daily Yonder between Anya Petrone Slepyan and astrophotographer Peter Lipscomb explains the importance of dark skies for humans.
Lipscomb calls the night sky ‘the world’s oldest natural resource,’ saying, “the night sky is both a global ecosystem and something that has informed and inspired our kind for all the thousands of years of human history.” From using it to create calendars and navigation to its spiritual significance across cultures, humans have relied on the sky and the stars throughout our history.
Now, “What was common to the human experience across the globe less than 150 years ago has now become the domain of a few.” For Lipscomb, this means that we are “losing an opportunity to connect to a part of our natural world that defines what it means to be a creature on this planet.” Additionally, the loss of dark nights can disrupt our rest and sleep cycles, leading to health problems.
Lipscomb supports efforts to mitigate light pollution. His suggestions: “Light things only to the level they need to be lit;” “Keep the light facing downwards;” “Avoid light trespassing by setting and shielding the light properly so that it is contained within the property of its origin;” and “Avoid blue-spectrum LED lights.” For Lipscomb, “All it takes is just being sensible as far as how we use our outdoor lighting.”
FULL STORY: Q&A: Why Do Humans Need Dark Skies?

Florida Considers Legalizing ADUs
Current state law allows — but doesn’t require — cities to permit accessory dwelling units in single-family residential neighborhoods.

HUD Announces Plan to Build Housing on Public Lands
The agency will identify federally owned parcels appropriate for housing development and streamline the regulatory process to lease or transfer land to housing authorities and nonprofit developers.

Conservatives’ Decongestion Pricing Flip-Flop
When it comes to solving traffic problems, the current federal administration is on track for failure, waste, and hypocrisy.

Can Geothermal Energy Fuel Hawaiʻi’s Future?
Gavin Murphy, a New Zealand-based consultant with experience in indigenous-led geothermal projects, argues that Hawaiʻi is poised to achieve energy independence and economic growth by respectfully developing its untapped geothermal resources.

Climate Gardening: Cultivating Resilient Landscapes in Los Angeles
TreePeople’s 4th Annual Urban Soil Symposium explored how climate gardening, soil health, and collaborative land management strategies can enhance urban resilience in the face of climate change.

Electric Surge: EV Chargers Outnumber Gas Nozzles in California
California now has 48% more electric vehicle chargers than gasoline nozzles, reflecting its rapid shift toward clean transportation and aggressive zero-emission goals despite federal pushback.
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.
Florida Atlantic University
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
City of Piedmont, CA
NYU Wagner Graduate School of Public Service
City of Cambridge, Maryland