Truth fact # 1

1. Global warming increases percipitation

2. http://www.ucsusa.org/global_warming/science_and_impacts/impacts/early-warning-signs-of-global-3.html
The Union of Concerned Scientists.
The source is very credible.
Air temperature causes an increase in evaporation and generally higher levels of water vapor in the atmosphere.
Yes, i believe the source.
They appear very professsonal and have their facts well put together.

http://www.britannica.com/EBchecked/topic/235402/global-warming/274848/Precipitation-patterns
Encyclopædia Britannica
This source is vert crible on many other topics as well as global warming.
Changes in precipitation patterns are expected to increase the chances of both drought and flood conditions in many areas.
I do belive this source.
They are very well known and are also well known on many other topics as well in todays society.

http://www.whrc.org/resources/online_publications/warming_earth/scientific_evidence.htm
Dr. Houghton is a well known ecologist.
The source is very credible with mnay doctors in this Research Center.
CO2 concentrations begin an unprecedented upward climb, rising rapidly from 280 ppmv in the early 1800s to a current level of 376 ppmv.
I believe this source.
Because they have the World Meteorological Organization (WMO) and the United Nations Environment Program (UNEP)