Sergio Rico is a Mexican engineer from the National Polytechnic Institute and created Water Silos, an invention that reduces water consumption in agriculture from 50 to 90%. This new invention consists of retaining rainwater, making it solid using a polymer capable of absorbing up to a liter of water. This great creation is biodegradable and allows water conservation for up to 8 years. It saves up to 90% in water consumption in agriculture. The polymer has the ability to retain 200 times its weight in water for a month and a half. It is known as biodegradable potassium acrylate polymer, sold in powder form, hydrated with rainwater and transformed into a gel that retains water. It is only buried at the root level and when it rains it encapsulates the water, becoming solid. The water remains in this state while the plant consumes it according to its needs. When the moisture in the polymer runs out, it returns to its main state, waiting for rain to encapsulate the water again. Dust is capable of maintaining this procedure for a period of 8 to 10 years.