On 17 July 1991 , during the 17th G7 summit , Manser climbed unaided to the top of 30-foot high lamp post outside of the summit 's media centre in London . After reaching the top , he unrolled a banner that displayed a message about the plight of Sarawak rainforests . He chained himself to the lamp post for two and a half hours . His protest also coincided with protests by Earth First ! and the London Rainforest Action Group . Police used a hoist to reach the top of the lamp post and cut his chains . Manser climbed down the lamp post without force at 1:40 PM . He was then taken to the Bow Street police station and held until the summit ended at 6:30 PM , when he was released without being charged with an offense
17th G7 summit
17th G7 summit
Bruno Manser