Protest by ‘actor-vists’ marks close of BP-sponsored ‘Sunken Cities’ exhibition and highlights cities at risk from rising seas –       Campaigners call BP deal illegitimate as trustees were not consulted –       Activists gatecrash Edinburgh opening of ‘BP Portrait Award’ on Friday night On Saturday, over 40 campaigners from 8 different countries including the US, Argentina and … More We take over the British Museum with a rebel Sunken Cities ceremony