Eric Walker added Wall Street Eyes Billions in the Colorado’s Water - The New York Times to a number of topics
Eric Walker added Self-Watering Soil Could Transform Farming - UT News to Agriculture and water scarcity
Eric Walker added a number of topics and a number of links to Water security, and added Water security to Water
Eric Walker added a number of links to Agriculture and water scarcity, and added Agriculture and water scarcity to Agriculture and farming and Water security
Eric Walker added a number of topics and a number of links to Agriculture and farming, and added Agriculture and farming to Industry and manufacturing and Science, engineering, mathematics and the humanities