Israel leads the world in the recycling of water; fully 90% of its waste water ends up being recycled. It leads the world in drip irrigation techniques, so essential for farmers in water-poor lands. It leads the world, too, in innovative methods of desalination that provide more than half of the country’s domestic water. And now Israel’s culture of innovation has brought forth a way to rid the world’s 60 million lakes of the blue-green algae that has been turning them into dead zones, where no life is possible. With the Israeli company BlueGreen’s technology, those millions of lakes threatened by blue-green algae can once again be made safe for fish, for wildlife, and for humans, while the algae can be safely, and cheaply, eradicated.