VALLEY CENTER, CA - MARCH 5:  Avocados hang from a dying tree in a grove that is being left to die because of the rising cost of water on March 5, 2014 near Valley Center, California. The Chipotle restaurant chain 2013 annual report concludes that increasing weather volatility as well as weather pattern changes and global climate change could have a significant impact on the price or availability of some of their ingredients. As the costs of basics like avocados rise, Chipotle may reluctantly choose to temporarily drop some items from their menu such as guacamole and one or more salsas. Chipotle reportedly uses 97,000 pounds of avocados per day, about 35.4 million pounds per year.   (Photo by David McNew/Getty Images)