An email dated April 15, authored by Dan Coogan, a deputy assistant administrator at the E.P.A., outlined directives from the agency's leadership for terminating all pending and active grants associated with specific programs, including the Science to Achieve Results (STAR) and the People, Prosperity and the Planet (P3) programs. These grants are critical for research and innovation, particularly for students developing environmentally friendly solutions like antiviral masks made from plastic waste. The cancellations signal a significant shift in the federal commitment to tackling environmental health challenges.