Extreme Heat

Hazy sky with Portland, Oregon skyline barely visible in background. Man walking in foreground.

Report: 25 Percent of Americans Live With Poor Air Quality

Fires and extreme heat are generating more harmful particulate matter.

February 18, 2024 - Health Day

View of hazy city skyline in yellow smog indicating extreme heat.

How Hot Will 2024 Get?

Experts predict summer temperatures could surpass 2023’s record heat waves, prompting cities to plan mitigation measures.

February 1, 2024 - Smart Cities Dive

Green trees reflected in high-rise skyscrapers.

Urban Design for Sustainability

The way we build cities can have significant impacts on public health and equity.

November 16, 2023 - Colorado Newsline

Road sign with EXTREME HEAT ALERT surrounded by orange traffic cones

How Extreme Heat Impacts Heart Health

A higher number of high heat days correlates with more cardiovascular deaths, according to new research.

November 6, 2023 - Wired

Sidewalk bus stop with bench and no shade in Los Angeles, California

Mitigating the Impact of UV Radiation

A new project aims to understand the unseen impact of ultraviolet radiation beyond extreme heat and mitigate its effects on people.

October 12, 2023 - The Architect's Newspaper

Mature trees shading an urban sidewalk.

The Drawback to ‘Cool Pavement’

New research suggests that cooling pavement treatments can actually make pedestrians standing on it feel hotter.

September 28, 2023 - Bloomberg CityLab

Close-up of window-mounted air conditioning unit on outside of red brick building

Report: ‘Energy Insecurity’ Hits Black Households Hardest

Extreme heat, poor housing quality, and the heat island effect make it harder for many households to afford energy bills.

September 17, 2023 - Smart Cities Dive

Close-up of hand holding up wooden thermometer in front of blurred street

Extreme Heat is Killing Us

Heat-related deaths are rising, and higher temperatures are just one reason.

September 14, 2023 - Governing

Natural gas power plant with two tall smokestacks against blue and purple sunset sky

Energy Reliability Vs. the Environment

A controversial but unanimous vote by California officials last week to keep three older, coastal natural gas power plants operating beyond their termination dates shows that environmental protection takes a back seat to keeping the lights on.

August 22, 2023 - Politico

White metal and glass bus shelter at station with separated bus lane in downtown Houston, Texas

Houston Metro Prototypes Bus Shelter Fans

The agency is working on designs for a bus stop shelter with built-in solar-powered fans to keep waiting riders cool.

August 20, 2023 - Houston Chronicle

Stone windcatcher tower that provides natural air flow in Shiraz, Iran

Looking to the Middle East for Cooling Architecture

Cooling mechanisms built into traditional architecture offer lessons for U.S. builders as heat waves grow more intense.

August 7, 2023 - Time Magazine

Blurred image of speeding DART light rain train in Dallas, Texas

How Extreme Heat Impacts Transit

Heat waves are causing damage and delays on commuter trains from New Jersey to Dallas.

August 4, 2023 - The Dallas Morning News

Lightning strikes over Tucson, Arizona at night during monsoon storm

Tucson Braces for Extreme Weather With Climate Action Plan

The desert city faces a growing risk from extreme heat waves and stronger, more unpredictable storms.

August 3, 2023 - Smart Cities Dive

Man drinking water from plastic bottle sillhouetted against orange sky signaling extreme heat

Biden Administration Announces Federal Heat Safety Policies

As extreme heat waves become more common and widespread, the administration is directing federal resources to heat mitigation efforts.

July 31, 2023 - NBC 4

Side-by-side photos of hand holding thermometer above pavement; left photo shows 119 degrees, right photo shows 110 degrees, illustrating the effect of a cool pavement treatment.

‘Cool Community’ Project Yields Promising Results

A ten-block area in one of L.A.’s most heat-prone neighborhoods saw significant reductions in surface and air temperature thanks to an innovative street treatment that could help communities around the country mitigate the impacts of extreme heat.

July 30, 2023 - Diana Ionescu

Blurred image of ciy skyline with orange filter indicating extreme heat

How to Scale Up Heat Mitigation

As heat waves intensify, cities are seeking out heat mitigation techniques that can be applied widely and benefit entire neighborhoods.

July 25, 2023 - Smart Cities Dive

Large power towers sillhouetted against an orange sky

Preparing the Grid for More Intense Heat Waves

As extreme heat becomes more common, the risk of a grid collapse threatens to turn a dangerous situation deadly.

July 2, 2023 - Wired

'Caution Extreme Heat Danger' sign in Death Valley, California with desert mountains in background

How Extreme Heat Drives Inter-Agency Collaboration

City officials tasked with addressing the impacts of extreme heat highlight the importance of aligning the efforts of multiple city departments.

June 18, 2023 - Smart Cities Dive

Older woman with short hair fanning herself with wood hand-held fan outdoors during hot afternoon

How Small Cities Can Prepare for Extreme Heat

Without the resources of larger cities, towns with fewer resources can still work to coordinate efforts across agencies and plan for heat events early in the year.

June 1, 2023 - Smart Cities Dive

Road sign with EXTREME HEAT ALERT surrounded by orange traffic cones

How Hot is Too Hot?

While they may not sound extreme, temperatures over 90 degrees can easily pose fatal risks and could have long-term impacts on public health.

May 23, 2023 - High Country News

News from HUD User

HUD's Office of Policy Development and Research

The Walkable City

Harvard GSD Executive Education

New Updates on PD&R Edge

HUD's Office of Policy Development and Research

Top Books

An annual review of books related to planning.

Top Websites

The best of the Internet—since 2002.

Top Apps

Planning apps for a brave new world.

Top Schools

The definitive ranking of graduate planning programs.

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.