Recent Posts by Eric
Urban Trees: An Underused Tool for Keeping People Cool
Urban Trees: An Underused Tool for Keeping People Cool
On a hot summer afternoon, the difference between one city block and the next can feel like a different world. On one street, the sun beats down from above while the pavement radiates heat from below. Just around the corner, ...
Most Cities Are Getting Hotter. Not All Residents Feel It Equally
Most Cities Are Getting Hotter. Not All Residents Feel It Equally
On a hot day in February 2024, volunteers dispersed across Cape Town, South Africa, with sensors affixed to their cars. Their aim was to measure heat differences across the city. In Cape Town’s dense, highly developed center, they recorded air temperatures ...
Meet CityMetrics: An Open-Source, Interactive Tool for Analyzing Urban Risks and Opportunities
Meet CityMetrics: An Open-Source, Interactive Tool for Analyzing Urban Risks and Opportunities
Which neighborhoods are suffering the most from rising urban heat? Where is flooding the biggest challenge? What other cities around the world are struggling with air pollution, and what can we learn from those that have improved the quality of ...
Europe’s Soaring Heat and the Great Air Conditioning Dilemma
Europe’s Soaring Heat and the Great Air Conditioning Dilemma
Much of Europe sweltered in August 2025 as a heat dome spread across the continent, pushing peak afternoon temperatures to over 40 degrees C (104 degrees F) in France and Spain. Meanwhile, parts of Greece, Turkey and Albania battled historic and devastating ...
Cities Are Heating Up. Better Infrastructure Can Cool Them Down.
Cities Are Heating Up. Better Infrastructure Can Cool Them Down.
In a city, a grassy park might be a place to stretch out with a book, an asphalt road your route to work, a building wall a canvas for a mural. But beyond their familiar roles, each of these surfaces ...
Hot in the City. But It Doesn't Have to Be — We Have Answers
Hot in the City. But It Doesn’t Have to Be — We Have Answers
This op-ed was originally published by Context, the media platform of the Thomson Reuters Foundation, on June 16, 2025. Read the original piece here. A new study has found that 4 billion people – half of the world’s population – endured ...
Beyond the Thermometer: 5 Heat Metrics That Drive Better Decision-Making
Beyond the Thermometer: 5 Heat Metrics That Drive Better Decision-Making
The way scientists and policymakers measure heat as they seek to combat rising temperatures across the world’s cities requires more nuance than just looking at the daily outdoor temperature. There are a variety of tools that can help show a ...
What Would Cities Look Like With 3 Degrees C of Warming vs. 1.5? Far More Hazardous and Vastly Unequal
What Would Cities Look Like With 3 Degrees C of Warming vs. 1.5? Far More Hazardous and Vastly Unequal
The world recently experienced a 13-month streak of record-breaking global temperatures. And as blistering heat waves punish communities across several continents, 2024 is on track to be the hottest year on record. Global average temperatures are now perilously close to exceeding 1.5 ...
The Future of Extreme Heat in Cities: What We Know — and What We Don’t
The Future of Extreme Heat in Cities: What We Know — and What We Don’t
The past year registered record-shattering global temperatures. People around the world are already witnessing epic heat waves, wildfires and drought at 1.1 degrees C (2 degrees F) of global warming, compared to pre-industrial averages. With current policies putting the world on ...
As the Earth Gets Hotter, Can Our Cities Get Cooler?
As the Earth Gets Hotter, Can Our Cities Get Cooler?
This summer the Northern Hemisphere has been so hot with record temperatures — including at sea — that discussions have turned to the limits of human survival. Even in the Antarctic, sea ice is failing to re-form, a drastic departure ...
New Data Dashboard Helps Cities Build Urban Resilience in a Changing Climate
New Data Dashboard Helps Cities Build Urban Resilience in a Changing Climate
Climate change is impacting cities and their residents in many profound ways, from poor air quality to flooding to biodiversity loss and extreme heat. Now, with the help of a new tool, select cities can access localized, integrated data to ...
Strategic City Planning with Nature? Assessing Urban Biodiversity in San José, Costa Rica
Strategic City Planning with Nature? Assessing Urban Biodiversity in San José, Costa Rica
Costa Rica is world-renowned for its biodiversity, and eco-tourism is a large contributor to the national economy and local livelihoods. Many visitors may catch only a glimpse of Costa Rica’s cities through a car window while being whisked between the ...
New Land Use Mapping Paints a Clearer Picture of Urban Life
New Land Use Mapping Paints a Clearer Picture of Urban Life
Remote sensing has revolutionized how we measure and understand the Earth. We can now track deforestation across the globe, predict end-of-season crop yields and identify wildfires in near real-time. But exploration into its possibilities for urban areas has only just begun. ...
3 Hurdles to Racial Justice in Clean Energy – and 3 Ways US Cities Can Overcome Them
3 Hurdles to Racial Justice in Clean Energy – and 3 Ways US Cities Can Overcome Them
For years, city governments in the United States have taken the lead on committing to climate action, with more than 165 cities aiming for 100% community-wide clean energy. But whether ambitious goals translate to ambitious action is another question altogether, and ...
Insights from Big Data on How COVID-19 Is Changing Society
Insights from Big Data on How COVID-19 Is Changing Society
Between the 1918 flu pandemic and the 2020 COVID-19 crisis, our ability to understand the effects of infectious diseases has increased exponentially. Networked personal devices and automated sensors are now ubiquitous, not to mention communications technologies like the internet that ...
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