Answer & Explanation:How does this effort reduce the greenhouse gases emissions levels?Use the Off SwitchSave electricity and reduce global warming by turning off lights when you leave a room, and using only as much light as you need. And remember to turn off your television, stereo and computer when youre not using them. Its also a good idea to turn off the water when youre not using it. While brushing your teeth, shampooing the dog or washing your car, turn off the water until you actually need it for rinsing.