Moody’s: Climate Change Will Affect Your Credit Rating

The agency has created an economic incentive for cities, states and counties to deal with environmental threats.

1 minute read

December 21, 2017, 7:00 AM PST

By Katharine Jose


Hurricane Sandy

NASA Goddard Space Flight Center / Flickr

In a new report, Moody’s Investor Services becomes the first of the three major credit-rating agencies to outline how the threat of climate will affect the bond ratings of a given city, county or state.

The company plans to take into account both the actual risk of the effects of climate change—floods, wildfires, rising sea levels, hurricanes—and whether or not appropriate measures have been taken to prepare for those risks.

At NPR, Nathan Rott quotes a Moody’s executive:

"'If you have a place that simply throws up its hands in the face of changes to climate trends, then we have to sort of evaluate it on an ongoing basis to see how that abdication of response actually translates to changes in its credit profile,' says Michael Wertz, a Moody's vice president."

Rott writes that in some places, like South Florida, a fair amount has been done to mitigate potential effects a changing climate, but that “it can be difficult for a policymaker to justify a big investment when the associated benefits or risks seem a long way down the road.”

Significantly, “Moody’s announcement may change that,” Rott writes, effectively created an immediate economic incentive to include climate change preparedness in city and state budgets.

Friday, December 1, 2017 in NPR

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

20 minutes ago - Zachary Whalen

Overlapping highways

The state-sanctioned urbicide of Austin

People don’t kill cities. Freeways do.

September 8, 2026 - Benjamin Schneider

The Hoover Dam blocking the Colorado River. The river's water level is noticeably low. The cliffs surrounding the blue water are brown and jagged.

US to reduce Colorado River water deliveries to Mexico

A new Colorado Treaty amendment reduces Mexico’s Colorado River water allocation by 250,000 acre feet.

September 11, 2026 - The Arizona Republic

NYC Mayor Zohran Mandami speaks behind a blue podium.

Mamdani overhauls NYC's Vision Zero plan with 100 new policy goals

The overhaul aims to reduce traffic deaths and make streets safer for pedestrians, cyclists and drivers through lower speed limits, new safety infrastructure and more.

15 minutes ago - ABC 7 Eyewitness News

A New Jersey train approaches people waiting at the station.

Amtrak not solely to blame for New Jersey commuter rail's unreliability, report finds

A new study from the Garden State Initiative found that NJ Transit’s budget grew 20% across a 4 year period, but reliability declined significantly over the same period.

September 15 - Mass Transit

A tall, gray power plant billows smoke into a blue sky.

EPA erases limits on planet-warming pollution from power plants

Under Monday’s plan, power plants would still have some limits on how much mercury, arsenic and other contaminants they can emit.

September 15 - New York Times

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.