As world leaders discuss climate change in Paris, we bring you a report from Spain, which has been in the grip of drought since 2014. One of the consequences is the plight of the Tagus, the longest river in the Iberian peninsula, stretching 1,000 kilometres across Spain and Portugal. Drought, inadequate water management and pollution are threatening the future of the river, as Mélina Huet and Sarah Morris report.
A programme prepared by Patrick Lovett and Jimena Morales-Velasco.
Lawyer, founder of the Franco-Spanish bar association