Kristy Dahl

Senior climate scientist

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Kristina Dahl is a climate scientist who designs, executes, and communicates scientific analyses that make climate change more tangible to the general public and policy makers. Her research focuses on the impacts of climate change--particularly sea level rise--on people and the places and institutions they care about. Dr. Dahl holds a Ph.D. in paleoclimate from the MIT/WHOI Joint Program in Cambridge and Woods Hole, Massachusetts.

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Kristy's Latest Posts

Hurricane Dorian gathers strength as it heads toward Florida on August 30, 2019. Photo: NOAA

Hurricane Dorian: What the Presidential Candidates—and All of Us—Need to Know

Even as our hearts hope for the safety of the people of Florida, we scientists are often asked about the connection between hurricanes and climate change. So for all the presidential candidates answering hard questions on climate change—and for everybody in America who cares about our future climate—this post lays out those connections and explains how Dorian fits into the picture. Read more >

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Calor fatal en cada distrito de congreso: Nuevo mapa y 433 fichas informativas que muestran lo que está en juego

Un nuevo mapa interactivo de Union of Concerned Scientists le deja explorar cómo se pronostica que el calentamiento global va a aumentar la frecuencia y la severidad del calor extremo en su distrito de congreso. Con esta herramienta, podrá descargar fichas informativas en español o inglés que muestran los riesgos que enfrenta su distrito. Read more >

AP Photo/John Locher
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Photo: Craig Davidenko/Drone Media

My Written Testimony on Transportation Infrastructure and Climate Change

In May of this year, I had the opportunity to provide written testimony to the House Science, Space and Technology Committee’s hearing on “The Need for Resilience: Preparing America’s Transportation Infrastructure for Climate Change.” I focused on how the many impacts of climate change—from increasingly frequent heat waves to rising seas—stand to affect the transportation infrastructure we all depend on and outlined a set of solutions that could limit future disruptions to the system.

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Photo: Craig Davidenko/Drone Media
4th National Climate Assessment
NOAA
NOAA
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Killer Heat by Congressional District: New Map and 433 Fact Sheets Show What’s at Stake

A new map tool from the Union of Concerned Scientists lets you explore how the frequency and severity of extreme heat are projected to change in your congressional district in response to global warming. Through the tool, you can download district-specific fact sheets in English or Spanish that show the risks your district faces. Read more >

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Will the US Be a Dystopian Hellscape in 2100 if Emissions Keep Rising?

The US is on a path to an unrecognizably hot future. Here’s what that looks like and how to change course. Read more >

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