A vigil was held on Friday evening in memory of Wynn Alan Bruce, who set himself on fire on the steps of the US Supreme Court in Washington, DC last week.
Mr Bruce, 50, died in hospital the day after his self-immolation, which has been described as an act of protest against the climate crisis. The incident took place on 22 April, Earth Day.
The vigil was organized by Declare Emergency, a group with the stated goal of getting President Joe Biden to declare a national emergency on the climate crisis.
The vigil was held in front of the US Supreme Court, where the crowd sang in rememberance of Mr Bruce, exactly a week after his death.
Following his death, Dr Kritee Kanko, a climate scientist and leader at the Boundless in Motion meditation community in Boulder, Colorado tweeted that Mr Bruce was a friend who she had meditated with.