Show Pony
"Total disarmament takes place.Weapons manufacturers retool to make ultracheap solar and wind power generators, water pumps and desalination devices and green bombs containing seeds and watering gels which are then propelled into the aird regions to make rainforests and deserts and tundra grow once more."
Nice Things that could happen in our lifetime: by David Merrit 

Put it alllll on the wall.