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Adam Markham
Deputy Director of Climate and Energy
Adam Markham directs UCS’s special initiative on climate impacts and works with a broad array of stakeholders to focus the attention of policy makers and others on local climate impacts and the need for effective resilience strategies and policy solutions.
Alden Meyer
Director of Strategy & Policy
Alden Meyer, an expert on international and domestic climate change policy, provides strategic guidance for our advocacy on energy, transportation, agriculture, and arms control issues.
Senior Analyst, Climate & Energy Program
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.

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