Because as reader Felix Schenuit points out, more science cannot resolve the political dilemmas involved: debate is needed on the values and interests at stake.
The Earth faces an imminent crisis caused by runaway Arctic warming. So says climate campaigner John Nissen, who travelled to COP20 in Lima to impress the dangers on delegates - and urge them to emergency action to cool the Arctic before it's too late. Tomás d'Ornellas, editor of Tecnews.pe, met him there ...