[cool_look]

that was just one of many many charges of tampering[1].

honestly this cristicism of the NOAA, NASA is pretty unwelcome by most HN people, so im not proposing everyone accept this immediately.

but the facts are out there and slowly if what i am saying is correct ( time will tell ) the the tampering will start being rolled back.

[1] http://www.telegraph.co.uk/comment/11367272/Climategate-the-...

[jsprunck]

Here is an analysis from a data-driven organization dedicated to listing, understanding and reducing biases in science records. They have covered the National Climate Data Center data (which apparently GISS uses).

http://berkeleyearth.org/understanding-adjustments-temperatu...

Edit: this discussion does focus on the U.S. network, where some of the articles you listed referred to data from Africa and South America, but assumedly the corrective techniques are similar.