Erika Spanger-Siegfried

Senior analyst, Climate & Energy Program

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Erika Spanger-Siegfried, a senior analyst in the Climate and Energy program at the Union of Concerned Scientists, researches, writes and speaks about U.S. climate change impacts and preparedness.She holds a master’s degree in energy and environmental analysis from Boston University and a B.S. in fisheries biology from the University of Massachusetts Amherst.. See Erika's full bio.

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Erika's Latest Posts

King Tide’s Gift: Gentle Awakenings to a Rapidly Changing World

If this is how we on the coasts get accustomed to living in a climate-changed world—literally “getting our feet wet”—I think we can count ourselves lucky. Because there are much harsher ways to wake up to our changing world. Read more >

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Winter Storm Jonas, Storm Surge, and the Science of Coastal Flooding

Winter Storm Jonas, poised to pound the mid-Atlantic this weekend, could bring record-breaking conditions. Some of the greatest danger will exist along our coasts, as high winds and high tides contribute to storm surge and potentially massive waves. Read more >

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Freakish Winter Warmth: It’s Not Not Global Warming

I’d like to step through a brief montage of recent examples from around the nuzzlingly warm eastern U.S. and get to the point: This warmth is due to several things, including global warming. Read more >

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The Climate Summit: Hope for a Deal in Paris and Shame on Would-Be Saboteurs at Home

Thousands of empty shoes lined the Place de la Republique in Paris on Sunday, left by those who would have marched for climate action, but for the terrible attacks earlier in the month. Amidst a bruised city’s new security constraints, and amidst a season of wrenching violence worldwide, people find ways to kindle hope and determination. And this week, the fragile hopes of many rest on the climate summit in Paris.

It has been stunning to watch, at the same time, some here in the U.S. gear up to kill any deal our delegation would bring home. Playing politics-as-usual with the future. I don’t know if they could succeed, I don’t know if they can be stopped, but I know they should be ashamed. Read more >

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Welcome to the Reign of King Tide: 10 Things to Know about This Week’s Tidal Flooding

This week, the so-called “king tides” are rolling in atop elevated sea levels, courtesy of climate change, and the flooding is well underway. This morning, Charleston Harbor, SC saw what is reported to be among the highest water levels ever recorded there—higher than during Hurricane David in 1979, meteorologists said—and the resulting morning gridlock as roads flooded and were closed. Southeast Florida neighborhoods are flooding over a succession of high tides, not surprisingly. Flood warnings are in effect for the East, West and Gulf Coast locations and forecasts warn of flooding through the weekend in low-lying areas. Read more >

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