Look at your garden with a different eye.
As a gardener, you appreciate the outdoor environment. Keep in mind that you can probably garden more efficiently than you do. Take inventory of your gardening style and see if you can reduce the herbicides and pesticides that you use. Can you switch from gasoline powered tools to electric or even human powered? Start composting your green waste and mulch your plants to help them retain moisture and to suppress weeds naturally. There are dozens of ways to reduce water consumption - from selecting the right plants to more efficient watering systems.