The economy and folks at home make some difference, too.
The James Dyson Award winners for 2011 have been announced, and the grand prize winner is a piece of clever...
A box that quenches thirsty plants without irrigation
A company plans to construct the world's largest solar power project ever, in the Sahara
Decades of poor irrigation and diverting practices destroyed the Aral Sea; now the Great Lakes face a similar fate