Facts for Prelims (FFP) Source: Economic Times Context: Recent archaeological findings have revealed an ancient, Atlantis-like supercontinent named Sahul, which facilitated human migration from Asia to Australia around 70,000 years ago. This landmass was exposed during the last ice age due to lower sea levels and connected present-day Australia, Papua New Guinea, and …
Facts for Prelims (FFP) Source: PIB Context: A new study of the Little Ice Age (LIA), a global climatic event from 1671-1942, challenges the traditional perception of it being uniformly cold and dry. The study, reconstructed the climate history of the Western Ghats in India between 1219 and 1942 using pollen-based vegetation data. Key …
Facts for Prelims (FFP) Source: TH Context: The article highlights the limitations of temperature estimates from before the invention of thermometers, based on “palaeo proxies.” It calls the claims that a specific day was the warmest in over 100,000 years as scientifically unfounded. What are Palaeo proxies? Palaeo proxies, short for paleoclimate proxies, are …
GS Paper 1 Syllabus: Geomorphology Source: IE Context: According to the Anthropocene Working Group (AWG), sediments at Crawford Lake in Canada’s Ontario have provided evidence of the beginning of the Anthropocene epoch. AWG: It is an interdisciplinary research group dedicated to the study of the Anthropocene as a geological time unit. It was …
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