PepsiCo and Water.org, and in 2009 began cleaning new Gatorade bottles with purified air instead of rinsing with water, among other water conservation practices. In the United Kingdom, also in response to regional drought conditions, PepsiCo snacks brand Walkers' reduced water usage at its largest potato chip facility by 45 percent between the years 2001 and 2008. In doing so, the factory used machinery that captured water naturally contained in potatoes, and used it to offset the need for outside water. As a result of water reduction practices and efficiency improvements, PepsiCo in 2009 saved more than 12 billion liters of
PepsiCo 2015. This division contributed 33 percent of PepsiCo's net revenue as of 2015, and involves the manufacture (and in some cases licensing), marketing and sales of both carbonated and non-carbonated beverages in North America. The main brands distributed under this division include Pepsi, Mountain Dew, Gatorade, 7 Up (outside the U.S.), Tropicana Pure Premium orange juice, Mist Twst, SoBe Lifewater, Tropicana juice drinks, AMP Energy, Naked Juice, and Izze. Aquafina, the company's bottled water brand, is also marketed and licensed through North America Beverages. In 2015, PepsiCo also introduced Stubborn Soda, a line of carbonated beverages without high fructose corn