Unfortunately, corn ethanol and terrestrial plant-based biodiesel face significant environmental and social dilemmas.
Reliance on food crops for fuel poses problems for populations around the world that rely on basic staple foods such as corn.
Source:
http://www.scientificamerican.com/blog/post.cfm?id=power-from-pondscum-2010-11-24
Plants and animals must adapt or go extinct as the climate changes.
Paul Raeburn and guests talk about new research on populations of frogs and lizards, and discuss ways that conservation strategies may have to change as habitats shift towards the poles or creep up mountain slopes.
Source:
http://www.npr.org/templates/story/story.php?storyId=126831134&ft=1&f=126831134
