Complex sentence: A member of the Don't Make a Wave Committee in 1969 and a co-founder of Greenpeace in 1972 with Patrick Moore, Dorothy and Irving Stowe, Marie and Jim Bohlen, Ben and Dorothy Metcalfe, and several other members.
Split into simpler sentences: A member of the Don't Make a Wave Committee in 1969 with Dorothy and Irving Stowe, Marie and Jim Bohlen, and Ben and Dorothy Metcalfe. He was a co-founder of Greenpeace in 1972 with Patrick Moore, Ben Metcalfe, Jim Bohlen, and several other members.