Water will be one of the key challenges of the 21st century, whether politically, environmentally, in regard to the climate, or in relation to human development. France would like to see cooperation on transboundary waters, including aquifers, in order to ensure the sustainability of water resources for our societies. Over the past 15 years, we have invested more than €40 million in this area. This was the message that France reiterated on December 8 at the UN-Water Summit on Groundwater, (…)