Lebanon's population is growing by two percent each year - putting a strain on water supplies. Demand is growing, and groundwater quality is getting worse.Water plays an important role in Lebanon, since 32.5 percent of the country's land is used for agriculture. Along the intensively farmed coast, tobacco, olives, grapes and other fruit and vegetables are grown. Grain and hemp are grown in the fertile Beqaa Valley. Using simple ideas, German experts and local water suppliers are trying to save a lot of water in Lebanon.