Friday, Sep 5, 2025
English News
  • Hyderabad
  • Telangana
  • AP News
  • India
  • World
  • Entertainment
  • Sport
  • Science and Tech
  • Business
  • Rewind
  • ...
    • NRI
    • View Point
    • cartoon
    • My Space
    • Olympics
    • Education Today
    • Reviews
    • Property
    • Lifestyle
E-Paper
  • NRI
  • View Point
  • cartoon
  • My Space
  • Reviews
  • Education Today
  • Property
  • Lifestyle
Home | India | In 2 Decades North India Lost 450 Cubic Km Of Groundwater Thanks To Climate Change

In 2 decades, North India lost 450 cubic km of groundwater, thanks to climate change

This is about 37 times the quantity of water the Indira Sagar dam — India's largest reservoir — can hold at full capacity

By PTI
Published Date - 7 July 2024, 11:12 AM
In 2 decades, North India lost 450 cubic km of groundwater, thanks to climate change
Representational Image
whatsapp facebook twitter telegram

New Delhi: About 450 cubic kilometres of groundwater was lost in northern India during 2002-2021 and climate change will further accelerate its depletion in the years to come, according to a new study.

This is about 37 times the quantity of water the Indira Sagar dam — India’s largest reservoir — can hold at full capacity, lead author Vimal Mishra, Vikram Sarabhai Chair Professor of Civil Engineering and Earth Sciences at IIT Gandhinagar, said.

Also Read

  • Groundwater depletion accelerating in many parts of the world, study finds
  • Water crisis in Telangana may worsen

Using on-site observations, satellite data and models, researchers found that across north India, rainfall in monsoons (June to September) has reduced by 8.5 per cent during 1951-2021. Winters in the region have become warmer by 0.3 degrees Celsius over the same period, they found.

The team, comprising researchers from the National Geophysical Research Institute (NGRI) in Hyderabad, said lesser rainfall during the monsoons and warming of winters will increase irrigation water demand and reduce groundwater recharge, further stressing the already depleting groundwater resource in north India.

While a drier monsoon leads to more reliance on groundwater to sustain crops during rainfall-deficit periods, warmer winters result in relatively drier soils, again requiring more irrigation — something the researchers observed during the unusually warm winter of 2022, the fifth warmest for India since the India Meteorological Department started records in 1901.

“The accelerating trend of depleting groundwater is expected to continue as the planet warms because even though climate change causes more rainfall, most of it is projected to occur in the form of extreme events, which does not support groundwater replenishment,” Mishra said.

The shortage of rainfall in the monsoons followed by warming winters, both driven by climate change, is projected to cause a “substantial decline” by about 6-12 per cent in groundwater recharge.

“For groundwater to get recharged, we need low-intensity rainfall spread over more days,” Mishra explained. Changes in groundwater levels are known to be largely dependent on rainfall received during summer monsoons and groundwater pumped out for irrigating crops during their respective growing seasons — June to September for Kharif crops and December to March for Rabi.

The combined effect of intensified irrigation demands and reduced groundwater recharge in the future, therefore, can put more strain on an already fast-depleting resource, he said. The findings challenge the optimistic perception that climate change-driven increase in rainfall will solve our water problems, the lead author of the study said.

In 2009, a monsoon drier by almost 20 per cent, followed by an unusual winter that was warmer by a degree, had “detrimental” effects on groundwater storage — it had reduced by 10 per cent, the authors found. Moisture lost from soil during winters also was found to have significantly increased over the past four decades, suggesting the potential role of warming and stepped-up demands in irrigation.

The authors have projected that under continued warming, monsoons drier by 10-15 per cent and winters warmer by 1-5 degrees Celsius will together spike irrigation water demands by 6-20 per cent.

A warming of 1-3 degrees Celsius across north India will also hamper groundwater replenishment considerably by 7-10 per cent, they said. “The findings have policy implications as the water crisis witnessed during this year’s heatwave highlights the need for cautious and judicious exploitation of the groundwater,” Mishra said.

Groundwater, vital for food and water security in India, will become a more crucial resource in a warmer climate because of increased demands for irrigation and industry alike, the author said.

“This is because surface water storage, such as in reservoirs and dams, is insufficient to meet demands during summer, as seen in cities such as Delhi and Bengaluru. Not paying attention to the resource could pose water security challenges in the future,” Mishra added.

  • Follow Us :
  • Tags
  • Climate change
  • Groundwater
  • groundwater levels
  • groundwater table

Related News

  • Climate change made heat, dryness that fuelled Iberian wildfires 40 times more likely

    Climate change made heat, dryness that fuelled Iberian wildfires 40 times more likely

  • SC decides to appoint amicus over ‘ecological imbalance’ in Himachal Pradesh

    SC decides to appoint amicus over ‘ecological imbalance’ in Himachal Pradesh

  • Extreme heat wiping out tropical bird populations

    Extreme heat wiping out tropical bird populations

  • Hyderabad: Brace for heavy to very heavy rains till August 17

    Hyderabad: Brace for heavy to very heavy rains till August 17

Latest News

  • 3 IAF Chinooks airlift 135 Manimahesh devotees to safety in Himachal

    10 mins ago
  • Chunky Panday calls daughter Ananya Panday’s glam ‘comedy show’

    21 mins ago
  • Adani Power gets shareholders’ nod for 1:5 stock split

    31 mins ago
  • Live bullet found in passenger’s baggage at Hyderabad airport, police probes case

    34 mins ago
  • Hyderabad: Pregnant woman found murdered in Jawaharnagar

    35 mins ago
  • Messi scores twice in an emotional home farewell for Argentina

    41 mins ago
  • Hyderabad Pickleball League: Saina joins Keerthi Warriors as co-owner

    9 hours ago
  • Hyderabad sports roundup: Snehit, Sreeja for Asian Table Tennis

    9 hours ago

company

  • Home
  • About Us
  • Contact Us
  • Privacy Policy

business

  • Subscribe

telangana today

  • Telangana
  • Hyderabad
  • Latest News
  • Entertainment
  • World
  • Andhra Pradesh
  • Science & Tech
  • Sport

follow us

  • Telangana Today Telangana Today
Telangana Today Telangana Today

© Copyrights 2024 TELANGANA PUBLICATIONS PVT. LTD. All rights reserved. Powered by Veegam