Parallel megadroughts in the Americas found, according to an article in Science (AAAS) News 31 December 2019 and Science Advances 24 Jul 2019 doi: 10.1126/sciadv.aax0087
Recent prolonged droughts occurring simultaneously in Chile and Southern California have prompted scientists to look for evidence of simultaneous droughts in North and South America in the past. Nathan Steiger, a palaeoclimatologist at Columbia University, and colleagues have analysed data from trees, corals, ocean sediments, and ice cores and found evidence that multiple “megadroughts” occurred simultaneously across the hemispheres from 800 to 1600 AD. The researchers found three factors causing the droughts: “an anomalously warm North Atlantic Ocean, small global temperature rises driven by factors such as a brightening Sun, and, especially, La Niña”.
La Niña is cooling of the Pacific Ocean, and affects the climate on both sides of the equator along the western coastlines of the Americas.
Editorial Comment: These days all extreme weather events and natural disasters are blamed on man-made global warming, but this study is a good reminder there are larger forces at work that human activity cannot be blamed for. The inhabitants of North and South America during these centuries were not driving trucks, generating electricity or building industries that are blamed for causing climate change these days. Even if they had been, they could not influence the ocean currents in the Atlantic and Pacific oceans, and they certainly couldn’t brighten the Sun.
The extreme weather events described in this study, and those that are occurring now, are actually part of the “creation groaning” as described by the Apostle Paul, who reminds us that the whole creation was subjected to “frustration” or “futility” (Romans 8:20-22) by the Creator Himself, who does have control over the ocean currents and the sun, and other forces such as clouds and winds.
Creation News 15 January 2020