Prominent LGBTQ rights lawyer and environmental campaigner David Buckel died this weekend after self-immolating in an apparent protest against the destruction caused by greenhouse gas emissions.

“Pollution ravages our planet, oozing inhabitability via air, soil, water and weather. Most humans on the planet now breathe air made unhealthy by fossil fuels, and many die early deaths as a result—my early death by fossil fuel reflects what we are doing to ourselves,” read  a note that was found near Buckel’s remains, in Prospect Park in Brooklyn, New York early on Saturday morning.

Buckel, who was 60 years old, added that he hoped his death “might serve others.”