According to organizers, parallel demonstrations occurred in more than 30 additional U.S. cities, with international solidarity events reported in several countries, including over 30 locations in France.

[2] The Washington, D.C. demonstration held on March 7, 2025, at the Lincoln Memorial featured numerous high-profile speakers including former Director of the National Institutes of Health and human genome researcher Francis Collins, astronomer Phil Plait, Nobel Prize-winning biologist Victor Ambros, former NASA administrator Bill Nelson, and scientific television personality Bill Nye.

[1] Several speakers addressed the attacks on institutions like the Environmental Protection Agency and National Oceanic and Atmospheric Administration including Congressman Bill Foster, Dr. Gretchen Goldman from the Union of Concerned Scientists, and volcanic researcher Denali Kincaid who highlighted the threat against multiple of the nations volcano observatories and other natural disaster related programs[6][7].

[8] Further protests were held at the Michigan State Capitol,[9] Hamilton College in Kirkland, New York,[10] the Boston Common,[11] and Schenley Plaza in Pittsburgh, PA.[12] Many protestors carried signs with scientific themes and criticisms of specific public figures including President Donald Trump, Secretary of Health and Human Services Robert F. Kennedy Jr., and Elon Musk, which included slogans such as "science is the vaccine for ignorance," "Edit Elon out of USA's DNA," and "In evidence we trust.

Many French scientists who were part of the demonstrations expressed concerns at the United States' policy changes that would restrict international scientific communication, data sharing, budgets, and climate change-related findings.