Global Warming

Global warming, the phenomenon of increasing average air temperatures near the surface of

Earth over the past one to two centuries. Climate scientists have since the mid-20th century

gathered detailed observations of various weather phenomena (such as temperatures, precipitation,

and storms) and of related influences on climate (such as ocean currents and the atmosphere’s

chemical composition).

These data indicate that Earth’s climate has changed over almost every conceivable timescale

since the beginning of geologic time and that the influence of human activities since at least the

beginning of the Industrial Revolution has been deeply woven into the very fabric of climate change.

 - Global Warming Solutions