Researchers create glow-in-the-dark cement to light up cities without using electricity

We live in an exciting time for so many reasons, but the progress being made toward decreasing our dependency on fossil fuels is certainly high on the list. The shift toward electric cars has been projected by several studies to have a dramatic impact on the amount of gasoline the world consumes over the next few decades. Meanwhile, great strides are being made in other areas as well -- wind farms are growing more efficient and recent breakthroughs could double the amount of power generated by s...