Blog Post Image: Rainfall in South Pacific Was More Variable Before 20th Century

Rainfall in the South Pacific (red) varied much more dramatically before the start of the 20th century than after. Rainfall values are first measured annually during the rainy season (November-April) and then averaged over each decade. The blue line indicates actual oxygen isotope values used to determine rainfall values. Image credit: University of Texas at Austin (Click image to enlarge)

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