Greenpeace activists  outside the United Nations in Geneva on Thursday as the IPCC special report on Climate Change and Land is released. Photograph: Martial Trezzini/EPA

The latest report from the UN Intergovernmental Panel on Climate Change (IPCC) was broadly welcomed by scientists across the globe as a framework to t(...)

Above, the Kogi tribe of Colombia, who summoned film-maker Alan Ereira back more than 20 years after his first film about them

More than 20 years ago, the British documentary film maker Alan Ereira began researching a film about a lost city in the rainforests of Colombia’s Sie(...)