I recently attended the ECHO Introduction to Tropical Agriculture week-long workshop in Ft. Myers FL. It's great for anyone wanting to learn more about poverty and agriculture methods to help people in developing countries. ECHO has a demo of just about everything that Dr. Randtke teaches in his Environmental Engineering & Science in Developing Countries class (CE495/895) at KU. It's a great place to network and meet missionaries and development workers. Pictures are of urban gardens for rooftops, the appropriate technologies (AT) intern showing a solar cooker (soy bean oil is used as a temperature indicator), a briquette press to make fuel pellets (the sign says Produce fuel from waste products: leaves, cornstalks, grass, sawdust, plant wastes, newspaper, junk mail, etc. Shred waste materials and soak in water; place desired quantity in perforated PVC and press; remove and air dry.) and a tilapia/duck pond in which the duck droppings feed algae which feed the tilapia fish. Thanks to the University of Kansas Professional Development Committee and my workplace for providing funds to attend this!