Israel has new challenges to confront: a growing build-up of pharmaceuticals in its waterways, plus poorly processed wastewater from the Palestinian Authority-administered territories mixed into its water table. These issues are being addressed in a new cooperative project between Israeli and Palestinian researchers…Sanofi is sponsoring the research…The heart of the problem is that all the drugs we take end up down the toilet some way or another…When all that water goes back...it can compound and concentrate — causing considerable biological damage to humans and ecosystems…[P]harmaceutical residues in the water…effects[’] on humans are not…well known…The new…project aims to…find the best ways to filter out or deactivate classes of drugs…If...successful, Sanofi may develop the technologies into a commercial project.