In support of the cumulative chart we explored above, we can see that the annual trends of European and North American nations have grown much earlier than in other regions.
Emissions from a number of growing economies have been increasing rapidly over the last few decades.
China’s rapid growth in emissions over the last few decades now makes it the world’s second largest cumulative emitter, although it still comes in at less than 50% of the US total. You can select a range of countries to compare through time in the "chart" tab, or alternatively click on a country on the "map" tab to see its time series.
Evidence suggests that this distribution is strongly related to ocean circulation patterns (notably the North Atlantic Oscillation) which has resulted in greater warming in the northern hemisphere.
each country has emitted to date, we calculate each nation’s ‘cumulative emissions’.
This means that we use the average temperature over the 1961-1990 period as a baseline against which yearly changes in temperature are measured.
The red line represents the average annual temperature trend through time, with upper and lower confidence intervals (the possible upper and lower range) shown in light grey.