Summary:
- The article discusses the changing public perception of Robert F. Kennedy Jr., who was once considered an environmental hero but has now become an outcast due to his controversial views on vaccines and the COVID-19 pandemic.
- It explores how Kennedy's anti-vaccine activism and his promotion of conspiracy theories have alienated him from the environmental movement and the scientific community, which he had previously championed.
- The article highlights the challenges faced by public figures who stray from mainstream scientific consensus, and the impact it can have on their credibility and influence in environmental and other social issues.