its nerve for long enough to find out. zoe kleinman, bbc news. finally, let s go to the egyptian resort of sharm el sheikh, where global leaders are holding climate talks at the cop27 conference. the united nations secretary general antonio guterres has been attacking countries and companies who make pledges on cutting emissions whilst continuing to invest in fossil fuels so called greenwashing . we must have zero tolerance for net zero greenwashing. using bogus net zero pledges to cover up massive fossil fuel expansion is reprehensible. it is rank deception. the sham must end. linzi boyd is founder of one earth global, a platform which helps businesses around the world quote impact change for the better and notjust focus on profits . for the better and notjust she is at the cop27