What legitimate adjustments could be done to change a slight cooling trend into a sharp warming trend?

Moving the measuring station would be a legitimate cause for adjusting the temperature record. For example, moving it up a mountain, or to somewhere generally cooler.

There are examples of temperature records being adjusted down; to account for the Urban Heat Island effect for example. (look it up, there is plenty of literature on this that you can get through googlescholar or web of science)

Well the critical point would be discovering what causes the sun to change its output levels. The last 300 years have been a period of very high solar activity and the worlds warmed. The last 3 years we have seen a quiet and inactive sun and the planets that orbit it are cooling. So the first thing that needs to be done is to discover exactly what causes the sun to vary its output level by up to 20% from documented highs to documented lows. Everybody has to learn to live with a simple bare fact our sun is a highly variable star and we currently because of liberal theft of resources have not a clue about what causes our sun to vary its output levels so much. I once read a book the Currents of Space by Isaac Asimov that dealt with this subject in a fictional way because he could not get the silly liberals that control research to properly investigate what he saw as the potential reason for climate change.

Some scientific information revealing the truth about global warming, when it happened and what probably caused it. And as well how many years, centuries or millennia it might be before the world warms up again from the coming ice age.

http://en.wikipedia.org/wiki/File:0Master_Past_200...

http://www.geocraft.com/WVFossils/global_warming.h...

http://www.geocraft.com/WVFossils/greenhouse_data....

http://reasonmclucus.tripod.com/CO2myth.html

http://mc-computing.com/qs/Global_Warming/Atmosphe...

http://en.wikipedia.org/wiki/Solar_variation

Where the heat came from and why it was abnormally cold previously

http://www.ac.wwu.edu/~dbunny/research/global/215....

http://en.wikipedia.org/wiki/Solar_cycle

http://en.wikipedia.org/wiki/Solar_minimum

http://en.wikipedia.org/wiki/Maunder_Minimum

oh just make up data like the scientist did...easy