This video is from Globalpost by Julia Kumari Drapkin promoting energy entrepreneurs around the globe. Ruth Saveedra, the founder of Sobre la Roca, talks about how difficult it is to change tradition. However, some traditions should not be carried on, like spending 6 hours preparing meals over a wood fire. Ruth calls kitchen fires a quiet killer and something that inspired her to start making solar ovens. Check out more energy entrepreneurs around the globe at http://www.globalpost.com/energyentrepreneurs.