“The fact is, we are still very much in an ice age; it’s just a somewhat shrunken one – though less shrunken than many people realize. At the height of the last period of glaciation, around twenty thousand years ago, about 30 percent of the Earth’s land surface was under ice.”

“The fact is, we are still very much in an ice age; it’s just a somewhat shrunken one – though less shrunken than many people realize. At the height of the last period of glaciation, around twenty thousand years ago, about 30 percent of the Earth’s land surface was under ice.”

— Bill Bryson