Figure 1 shows four images of Earth observation and modelling. The first two show a map of South and Central America and the Atlantic. The first shows red bands corresponding to latitudes equivalent to Central America and the Atlantic and violet bands corresponding to tropical latitudes. The next shows lines representing atmospheric circulation superimposed onto a map of the UK, France and the Iberian Peninsula, showing air circulation across the eastern Atlantic. The final image shows coloured bands (but no map), from red at the top of the image to violet at the bottom.