what is the evidence of global warming?

Answer 1

There's volumes of it in the scientific literature.

Here's the short version:

http://en.wikipedia.org/wiki/Image:Climate_Change_Attribution.png

And the best summary of the massive amount of data:

http://www.ipcc.ch/SPM2feb07.pdf

Here's a good general website, with much data:

http://www.realclimate.org

Answer 2

The temperature of the earth has gone up a degree in the last 100 years. It's not clear we are causing it though since the energy output of the sun has gone up .15% in the last 30 years and Mars and Pluto are also warming up. It could just be Al Gore's ego warming things up.

http://www.space.com/scienceastronomy/sun_output_030320.html

Answer 3

The average temperature of the Earth has gone up by 1 degree from the last century. So its causing the Earth to get much warmer than it's supposed to be. It's also causing bad effects like storms and hurricanes getting stronger and more frequent and more El nino,which is making fish to move to colder waters and causing coral reefs to die.

Answer 4

evidence? Who needs evidence. Just go an buy Al Gore's carbon offsets so he can fly his personal jet around the world some more.

Answer 5

My advice watch the movie inconvenient truth. Most people found this moving educational, entertaining and suspenseful.

Answer 6

Melting glaciers and decreased size of ice fields at the poles.

Answer 7

The temperature. the above-average level of the ocean. more and poweful hurricanes

Answer 8

The fact that I can scramble an egg on the sidewalk

Answer 9

the temperature