“A one- or two-degree increase in the world’s temperature may not seem like much,” she tells the students in the chilly auditorium, most paying attention rather than sleeping or texting. “But think of your own body when your temperature goes up by one and a half degrees. It means you’re getting sick.”
There have only been a few relatively short periods in Earth’s modern geologic history with temperatures as cool as they are now. Most of the time, temperatures were 10C warmer.
It is a wonder that any plants or animals were able to survive. They must have been all shriveled up.