Visual evidence for global warming

Originally Posted by aaken

Narcosis, I don't know if you have noticed but the references that you provided
in your previous post do not support your thesis that, according to NASA, the
global warming is not caused by human emissions.

http://www.newscientistspace.com/art...d-by-nasa.html

In this article the focus is put on the proliferation of glowing clouds. Citing
form the article:
"Many researchers believe this proliferation is down to human activities. "You need three things for clouds to form: particles that water can condense onto; water; and cold temperatures," says Russell. He says pollution and global warming are thought to be responsible for two of those factors."
In any case, the article is not directly linked to the discussion if the global
warming is caused by human activity.

http://www.gsfc.nasa.gov/gsfc/earth/gw/co2.html
In this article it is pointed out a theory that links the global warming not to
the CO2 emissions, as previously thought, but to non-CO2 emissions like methane,
CFC and soot particles. Also in this article it seems that there is no mention
to the fact that global warming is not related to human activities.

http://www.space.com/scienceastronom...ut_030320.html
In this article it is argued that "one component of global warming" may be the
increase in solar radiation.
Citing from the article:
"That does not mean industrial pollution has not been a significant factor, Willson cautioned."

Your last reference is a search on the NASA website. I cannot cite all articles
because they are many but I haven't found one single article that affirms that
global warming is either inexistent or not connected to human activity.

You need to look harder

Quote:

"The largest fluctuations in the satellite temperature data are not from any man-made activity, but from natural phenomena "


http://science.nasa.gov/newhome/head...d06oct97_1.htm

http://earthobservatory.nasa.gov/New...081215330.html