CONTINUING drought conditions could bring a revision of the hydrological accord between Portugal and Spain and may see Madrid taking recourse to exceptional circumstances set down in the agreement, whereby the Spanish can cut the water flows in certain rivers common to both countries. Likely candidates are thought to be the Douro and the Minho rivers. With reservoirs at their lowest levels and both countries in situations of “extreme drought”, Spain could now decide to disregard the Luso-Hispanic hydrological agreement and impose cuts in the flow of rivers into Portugal. The Portuguese Water Institute met recently to analyse the situation, with a statement expected shortly.