Climate change likely led to fall of Indus Valley Civilisation: Study
New York: Shifting monsoon patterns linked to climate change likely caused the rise and fall of the ancient Indus Valley Civilisation, according to a study by an Indian-origin scientist which analysed data from North India covering the past 5,700 years.
The analysis by Nishant Malik from Rochester Institute of Technology (RIT) in the US used a new mathematical method to study ancient climate patterns in North India over time, providing insights about past climates using indirect observations.
The research, published in Chaos: An Interdisciplinary Journal of Nonlinear Science, noted that by measuring the presence of particular chemical forms in stalagmite mineral deposits in caves in South Asia, scientists could develop a record of monsoon rainfall in the region for the past 5,700 years.
However, Malik said studying ancient climate time series with mathematical tools typically used to understand climate is a challenging task.
"Usually the data we get when analysing paleoclimate is a short time series with noise and uncertainty in it. As far as mathematics and climate is concerned, the tool we use very often in understanding climate and weather is dynamical systems," Malik said.
"But dynamical systems theory is harder to apply to paleoclimate data. This new method can find transitions in the most challenging time series, including paleoclimate, which are short, have some amount of uncertainty and have noise in them," he explained.
While there are several theories about why the Indus Valley Civilisation declined, including invasion by nomadic Indo-Aryans and earthquakes, climate change appears to be the most likely scenario, the study noted.
However, Malik said there was no mathematical proof until the new hybrid approach was applied.
According to his analysis, there was a major shift in monsoon patterns just before the dawn of this civilisation and that the pattern reversed course right before it declined, indicating it was in fact climate change that caused the fall.
The RIT scientist believes the new method will allow scientists to develop more automated methods of finding transitions in ancient climate data, leading to additional important historical discoveries.
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NRI Kannadiga community should achieve greater accomplishments: Dr. Arathi Krishna
Bahrain: Dr. Arathi Krishna, Vice President of the Non-Resident Indian (NRI) Forum, Government of Karnataka, participated as the Guest of Honour at the prestigious Global Women’s Economic Forum and Exhibition held on January 13, 2025 in Bahrain.
The international event, known for its pivotal role in empowering women entrepreneurs and professionals, provided a unique platform for showcasing business innovations and fostering leadership among women.
During the event, Dr. Krishna emphasized the significance of women’s contributions to entrepreneurship and technological advancements. She noted that the forum's dynamic workshops, panel discussions, and expert speeches offered specialized insights into innovative practices, financial management, and the adoption of new technologies. These knowledge-sharing opportunities are designed to support emerging women entrepreneurs, enabling them to thrive in a competitive global marketplace.
Highlighting the transformative power of such initiatives, Dr. Krishna remarked on the growing achievements of women entrepreneurs in traditionally male-dominated sectors. She acknowledged that the event not only celebrated success stories from across the globe but also inspired young women to pursue entrepreneurship and leadership roles. The participation of women-led businesses from diverse nations underscored the universal nature of entrepreneurial spirit and innovation.
Dr. Krishna also engaged in thoughtful discussions with successful women leaders and interacted with representatives of various Kannada associations in Bahrain. She reiterated her appeal to the global NRI Kannada community to strive for excellence and greater accomplishments in their respective fields.
