In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Your brain is 80% water.
525
Nearly 50% of the world's scientists are assigned to military projects.
71
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Research indicates that plants grow healthier when they are stroked.
173
The average home creates more pollution than does the average car.
33