Stories by Erika Spanger-Siegfried

Erika Spanger-Siegfried is the lead climate analyst in the Climate and Energy program at the Union of Concerned Scientists.

Biden’s Earth Day Summit Is a Crucial Opportunity for Climate Action

The president should commit to cutting U.S. emissions at least 50 percent below 2005 levels by 2030

Rachel Cleetus, Erika Spanger-Siegfried