<p><span class="inline inline-left"><img src="http://www.energybulletin.net/sites/default/files/images/Terraced-Rice-Paddy-Ubud-Area-Bali-Indonesia-440x330.thumbnail.jpg" alt="" title="" class="image image-thumbnail" width="100" height="75" /></span>Balinese farmers have been growing rice in terraces since at least the eleventh century. Because the island&#8217;s volcanic rock is rich in mineral nutrients, water running off mountains fills the rice paddies to create a kind of aquarium.This system has enabled farmers to grow two crops of rice a year year for centuries. They do this using a unique form of cooperative agriculture that enables farming to flourish despite water scarcity and the constant threat of disease and pests.</p>
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