No, it isn't changing fast enough or in the right way. You are trying to explain a hundred year trend with a 20,000 year cycle, and trying to explain a warming with a cooling phase of that cycle. They have several different reasonable ways of estimating global temps, collecting temp data over water, etc. That's old news - here's the new numbers when the dust settled. http://data.giss.nasa.gov/gistemp/graphs/ http://en.wikipedia.org/wiki/Global_warming http://earthobservatory.nasa.gov/IOTD/view.php?id=37215 picture of the Greenland melt in '08.