Mounting evidence suggests that the average temperature of the planet is

About 50 years ago, mounting evidence was suggesting

that the temperature of Earth's surface has been sharply

increasing for the past couple of centuries. Nowadays,

additional evidence no longer suggests it; it confirms it.

Today's mounting evidence suggests that human activity is

responsible for the increase, but that the increase eventually

spells curtains for much of human activity.

The average surface temperature of planet earth is approximately 14°C