DRP 041124: Study says Big Dams are costly gambles or frauds?

November 4, 2024February 27, 2026 SANDRPLeave a comment

(Feature Image: Lower Subansiri HEP dam. Source: PIB, June 2023)

An interesting study reported this week reveals Big Dams are costly gambles and explains why this is so. In fact, the explanations go on to reveal that this is by design, the costs are systematically under estimated and benefits are exaggerated, so the dams fail to provide the promised benefits. So Big Dams are actually not gambles, but frauds. They get away with all this due to lack of transparency and accountability in the governance, the study reveals.

For those following the global debate on big dams over the decades know that there is nothing new here. A number of studies earlier exposed all this, including the Independent Review of the Sardar Sarovar Project instituted by the World Bank, the World Commission on Dams report, the India Country study done for WCD, among others.

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DRP News Bulletin

DRP 28×24: Hydropower Impacts on Biodiversity

October 28, 2024February 27, 2026 SANDRPLeave a comment

(Feature Image: The Ranganadi dam in Arunachal Pradesh. In February 2019 the dam released an unprecedented amount of silt, with severe impacts for the river’s biodiversity and the livelihoods of people who live along its banks. Image Credit: Karen Conniff / Flickr, CC BY-NC 2.0/Source: Dialogue Earth)

A new study of available scientific publications on impact of Hydropower projects on biodiversity provides a thorough review of the subject. The review does not directly give a call not to construct more such destructive projects. But it is useful for anyone concerned about the impact of dam projects on rivers.

The study discusses the impacts of hydropower projects on both aquatic and semi-aquatic species in riverine ecosystem and cumulative impacts spatially and temporally across river basins. Dams disrupt longitudinal connectivity and act as physical barriers in upstream-downstream movement of species. Upstream of dam, there is static water environment rather than flowing river environment. In the downstream, the hydropower projects adversely affect the water flow, sediment flow, thermal regimes, affecting water quality and environmental cues for the fish movement. All these also affect the floodplains both upstream and downstream.

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DRP News Bulletin

DRP 21×24: New Warnings from Studies about Global Water Changes

October 21, 2024February 27, 2026 SANDRPLeave a comment

(Feature Image (Screenshot): Atmospheric rivers occur all over the world, as this animation of global satellite data from February 2017 shows. Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio)

A number of reports listed below this week throw fresh light on functioning of global water cycle, some of the findings should be seriously worrying. The studies show how the countries across the globe have water connections that go far beyond shared rivers, lakes and seas. And how these components of global water cycles are not only changing, but are under unprecedented stress and could take the global water cycles off balance.

Another study about atmospheric rivers that provides some of the largest high intensity rainfalls show that these rivers are shifting, which can have far reaching consequences for large sub-tropical areas, polar areas and others. For understanding their implications, more studies particularly focusing on shifting El Nino and La Nina streams are required.

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DRP News Bulletin

DRP 07×24: Global Dam Safety Challenge in Changing Climate

October 7, 2024February 27, 2026 SANDRPLeave a comment

It is increasingly clear that Large Dams across the world are facing increasing challenge due to climate change. In recent years, we have already seen serious dam disasters in Australia, Brazil, Canada, India, Kenya, Libya, Nepal, Nigeria, Poland, Spain, Sudan and USA to name just a few.

All these are related to extreme rainfall events, which are going to only increase in intensity, frequency and spread. It is interesting that hydro industry platform has come out with this report highlighting this issue this week.

For a country like India, the third large dam builder in the world, this challenge is going to be even more daunting as we have been seeing the increasing number of dams related disasters in last few years. As we remember the Teesta 3 dam disaster a year ago, the nature and dimension of this challenge becomes even starker. This is also exemplified by the fact that the dam safety panel report about this disaster is not even out in public domain. And even now new theories are being proposed about what happened during the disaster.

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DRP News Bulletin

DRP 300924: Focus on River Studies

September 30, 2024February 27, 2026 SANDRPLeave a comment

Rivers are the most important ecosystems (eco here includes ecology and economy) and yet possibly least studied entities. Some news below this week about some river studies brings the focus on need to take up many more river related studies.

Most important aspect of river related studies is the need for credible, independent studies, not influenced by the needs of the governments. Otherwise, the government is likely to not only influence the study, but also decide not to make it public as they did in case of the studies related to Joshimath town and role of Chamoli disaster.

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DRP 230924: Role of rivers in the birth of governments

September 23, 2024February 27, 2026 SANDRPLeave a comment

(Feature Image Source: The Economic Origins of Govt)

Interesting research published in 2023 suggests that archaeologists and economists are now learning that dynamic, shifting rivers also created conditions that triggered people to develop some of the first organized govts on the planet.

In the research published in The American Economic Review Robert Allen and two co-authors found that Agriculture and large settlements emerged alongside rivers because they could tap into the gifts of rivers: close access to water and fertile soil. But rivers can move and take those gifts away. So, society developed organized govts to work collectively to regain their access to those gifts.

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DRP News Bulletin

DRP 160924: Urban Flood lessons from Vadodara, Vijaywada

September 16, 2024February 27, 2026 SANDRPLeave a comment

(Feature Image: Vadodara: A flooded area after heavy monsoon rainfall, in Vadodara, Aug. 27). Photo Credit: PTI/The Hindu)

Like every monsoon, a number of cities have faced catastrophic floods in SW monsoon this year. Vadodara and Vijaywada have got the media attention more than any other city for urban floods this year. In both cases a number of factors are common: role of upstream dams, encroachment on water bodies including rivers, lakes, streams, role of illegal sand mining particularly in Vijaywada, not having learnt any lessons from past flood disasters.

It is interesting to see Andhra Pradesh CM hinting at bringing HYDRAA like enforcement institution to remove encroachments on Budameru and other water bodies. Considering the nature of his politics and track record, it is doubtful if this NDA CM will take such a bold step, but it is certainly worthy of consideration for almost all urban areas in India.

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DRP 090924: Question marks over Yettinahole should not be buried under money spent

September 9, 2024February 27, 2026 SANDRPLeave a comment

(Feature Image: File photo of Yettinahole Project. Source: Daijiworld)

The Yettinahole project has seen protests and question marks right from the time when the project was proposed, none of them have been convincingly answered. As the Karnataka Chief Minister and his deputy commissioned a small part of it, those question marks remain as relevant today, including its hydrological viability, environmental impact assessments and sustainability, with hugely weakening of the western ghats by such major interventions without any credible impact assessments. (see: https://sandrp.in/2013/09/18/yettinahole-diversion-an-imprudent-rs-100-billion-proposition/)

It is good to see CWC and MoEF have also raised some questions and asked report even at this stage. One however expects CWC to raise such questions much earlier in the project cycle and before the project becomes fait accomplice. Else, it seems more like politicking. MoEF could have raised issues of violations before the violations happened on ground and should have refused to provide piece meal forest clearances as it has alleged.

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Ken Betwa Project

Yamuna Manthan 050924: Changing parameters of Ken-Betwa Project needs fresh appraisal?

September 5, 2024September 5, 2024 SANDRPLeave a comment

(Feature Image: Dry Ken river beneath bridge at Pandvan in Amanganj, Panna in April 2018. Image taken during Ken river walk by SANDRP & Veditum India)

The controversial Ken-Betwa Interlinking project is undergoing several changes being proposed by central and state governments of UP and MP. Firstly, there are plans to build two new barrages at Pailani and Banda and renovate Beriyapur and Pariksha weirs and Barua Sagar dam apart from renovation of 15 dams and large ponds in Mahoba district. Then, the construction of a 21 km link channel will require 271 ha of forest land.

Similarly, the CM of MP has requested to increase irrigation capacity of Patne-Biarma Irrigation Scheme from 90,100 ha to 2,50,000 ha under the interlinking plan. On the other hand, the CM of UP has suggested inclusion of Hamirpur district in the plan.

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DRP 020924: HYDRA to protect water bodies in Hyderabad – a landmark move?

September 2, 2024February 27, 2026 SANDRPLeave a comment

(Feature Image: An analysis of satellite imaging of 54 lakes taken in 1979 and 2023, secured by the HYDRAA from the NRSA shows that 40 lakes or nearly 75 per cent of lakes have shrunk by half. (Image: Twitter/DC)

The Hyderabad Disaster Response and Asset Monitoring and Protection Agency, or Hydra was established under GO 99, dated July 19 2024. A task the agency has taken up in all seriousness is protection of water bodies in the Hyderabad Capital Region (it includes 4 districts). To begin with it has started demolition of buildings illegally built inside the Full Tank Area (FTL) and Buffer area of the water bodies.

In July, Telangana Chief Minister Revanth Reddy replaced the Enforcement, Vigilance and Disaster Management (EVDM) wing of the government with Hydra, a body mandated to tackle illegal encroachment on water bodies in the Greater Hyderabad Municipal Corporation (GHMC) limits and surrounding areas. Its strength was upgraded from around 800 to 2,200 and its officials came directly under the principal secretary, municipal administration and urban development or the CM himself. “Hydra will also ensure the protection of water bodies in and around Hyderabad,” former EVDM commissioner and Hydra chief A V Ranganath said during its inception.

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