It depends which way it changes during the ice ages it got colder and dryer, during the little ice age it got colder and wetter, during the medieval warm period it got warmer and wetter, about now, it is not changing at all, the last 17yrs the temperature has stayed stable.

What Climate Change/Global Warming are you talking about?

It's been cooling for at least 12 years.

http://www.woodfortrees.org/plot/hadcrut...

Top climate scientists say there is no man-made Global Warming.

The Great Global Warming Swindle