Annual rainfall trends (inches per month per decade) in the Western North Pacific sub-region from 1950 to 2010. Blue shading indicates wetter, and red shading indicates drier. The size of the dot is proportional to the magnitude of the trend as per the inset scale. While islands in the West are tending towards getting slightly more precipitation, islands in the East are experiencing larger magnitudes of less precipitation (Keener et al. 2012).