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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Parliament passes Waqf (Amendment) Bill, 2025
New Delhi (PTI): Parliament early Friday passed the contentious Waqf (Amendment) Bill, 2025, after it was approved by the Rajya Sabha.
The Lok Sabha had on Thursday approved the Bill after over a 12-hour debate.
In Rajya Sabha, the Bill got 128 votes in its favour and 95 against after all the amendments moved by the opposition were rejected.
In the lower house, the bill was supported by 288 MPs while 232 voted against it.
Participating in a debate in the Rajya Sabha, Minority Affairs Minister Kiren Rijiju said the Bill was brought with a number of amendments based on suggestions given by various stakeholders.
"The Waqf Board is a statutory body. All government bodies should be secular," the minister said, explaining the inclusion of non-Muslims on the board.
He, however, said the number of non-Muslims has been restricted to only four out of 22.
Rijiju also alleged that the Congress and other opposition parties, and not the BJP, were trying to scare Muslims with the Waqf Bill.
"You (opposition) are pushing Muslims out of the mainstream," he added.
He said for 60 years, the Congress and others ruled the country, but did not do much for Muslims and the community continues to live in poverty.
"Muslims are poor, who is responsible? You (Congress) are. Modi is now leading the government to uplift them," the minister said.
According to the Waqf (Amendment) Bill, Waqf tribunals will be strengthened, a structured selection process will be maintained, and a tenure will be fixed to ensure efficient dispute resolution.
As per the Bill, while Waqf institutions' mandatory contribution to Waqf boards is reduced from 7 per cent to 5 per cent, Waqf institutions earning over Rs 1 lakh will undergo audits by state-sponsored auditors.
A centralised portal will automate Waqf property management, improving efficiency and transparency.
The Bill proposes that practising Muslims (for at least five years) can dedicate their property to the Waqf, restoring pre-2013 rules.
It stipulates that women must receive their inheritance before the Waqf declaration, with special provisions for widows, divorced women and orphans.
The Bill proposes that an officer above the rank of collector investigate government properties claimed as Waqf.
It also proposes that non-Muslim members be included in the central and state Waqf boards for inclusivity.
