Q: Where has it warmed?
Explanation of figure 1: Long term temperature trend of each region of the globe between 1970 and 2009 (created at NASA GISTEMP). Scale at bottom shows what temperature change (in dC) each colour represents. Ie: Areas that have cooled are shown in blue, areas that have warmed range from yellow to orange to red, with red representing the most warming. Areas which no change are in white. Grey represents areas with a lack of data.
- Warming has been recorded over the entire globe since 1970, ie: global warming.
- The long term temperature trend from 1970 to 2009 shows warming of 0.67 dC (nb: this is not a comparison of 1970 with 2009 but the trend in worldwide temperatures over the whole 40 year period).
- Warming has been greatest in high northern latitudes (around the north pole), consistent with what is predicted in a warming world.
- The only area without consistent warming is in and around parts of Antarctica, scientists think this may be due to the hole in the ozone layer*.
+/- Further info (click to expand)