Barely two centuries ago, most of the world's productive land still belonged either communally to traditional societies or to the higher powers of monarch or ch

"I take care of the earth because I know I can do little things every day to make a BIG difference..." With his signature blend of playfulness and sensitiviy, T

In 1790, America was in enormous debt, having depleted what little money and supplies the country had during its victorious fight for independence. Before the n

Harvard’s acclaimed geologist “charts Earth’s history in accessible style” (AP) “A sublime chronicle of our planet." –Booklist, STARRED review How w

Only twenty-four people have seen the whole earth. The most beautiful and influential photographs ever made were taken, almost as an afterthought, by the astron