Posted by Wendy on 1/20/2015 to
Energy is an issue that touches every person on the planet. That's why we created free-light Solar Lighting and National Geographic, in partnership with Shell*, has launched the Great Energy Challenge. It's a call to action to become actively involved, to learn more and do
more—to change how we think about and consume energy so that we can all
help tackle the big energy questions. Learn more...