Daniel J. Metzger

9 posts
Dan Metzger is a Senior Fellow with the Cities Climate Law Initiative at the Sabin Center for Climate Change Law at Columbia Law School.

Atlanta’s New Ordinance Raises the Bar on Cool Roofs

Earlier this month, on June 2, 2025, Atlanta’s City Council unanimously passed a state-of-the-art ordinance to require cool roofs throughout the whole city, immediately propelling Atlanta to the forefront of local climate adaptation measures. The new requirements will help make Atlanta cooler, improve its air quality, and lower residents’ energy […]

100 Days of Trump 2.0: Updates from the Climate Backtracker

This post is the first of a new Climate Law Blog series, 100 Days of Trump 2.0, in which the Sabin Center offers reflections on the first hundred days of President Trump’s second term across a variety of climate-related topics. To read other posts from the series, which will roll […]

Inside a Texas Showdown Over Cities’ Role in Adapting to Climate Change

Texas’ Third Court of Appeals will hear arguments tomorrow, April 23, 2025, in a case that cuts to the core of how state and local governments coexist. In Texas v. City of Houston, City of San Antonio, and City of El Paso, a group of Texas cities is challenging one […]

Cancelling the Buy Clean Program Will Not Cancel Low Embodied Carbon Construction

On his first day in office President Trump axed the Biden-era federal Buy Clean program. Buy Clean was designed to leverage the federal government’s buying power to help grow the low carbon building materials industry. Killing it will have consequences—buildings are responsible for a major share of global carbon dioxide […]

Smart Surfaces Policy Tracker: A New Resource For Cities

Cities have a unique and significant role to play in responding to climate change. Many are already doing so by adopting legal and policy tools to encourage the use of smart surfaces—a group of technologies and design strategies that mitigate the effects of climate change in urban environments, especially extreme […]

The National Heat Strategy is a Strong First Step

On August 14 the federal government released the United States’ first National Heat Strategy. As it stands today, the Strategy is a major step forward for coordinated federal action to recognize and address extreme heat and it confirms that agencies across the federal government are making this a high priority […]

IECC Appeals Could Undermine Electrification Requirements in New Construction

Building codes have a major influence on how local governments respond to climate change. They prescribe enforceable requirements for the materials that buildings are made of, for how living and working spaces are designed, and critically, for what kinds of environmental possibilities new buildings must be prepared to accommodate. For […]