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Freshwater-based coal power plants guzzle the most water: CSE

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Even six years after the water consumption norms came into force, the water-guzzling coal power industry is ignoring water regulations and there is a high degree of non-compliance observed in the sector, a new report by the Centre for Science and Environment (CSE) says.

Counted among the most water-intensive industries in India, the coal power sector is responsible for nearly 70 per cent of the total freshwater withdrawal by all industries in the country. Indian power plants with cooling towers consume twice as much water as their global counterparts, said the report titled ‘Water Inefficient Power’.

According to the 2015 norms (revised again in 2018), plants installed before January 1, 2017, were required to meet a specific water consumption limit of 3.5 cubic metre of water per MWh; plants installed after January 1, 2017 had to meet the norm of three cubic metre of water per MWh, apart from adopting zero liquid discharge.

Additionally, all freshwater-based plants were required to install cooling towers and subsequently achieve the norm of 3.5 cubic metre of water per MWh. All sea water-based plants were exempted from meeting the norms.

The deadline to meet the water norms was December 2017 which has already passed. The water norms for coal power plants were introduced in 2015 along with the emission norms. Though emission norms timelines for the sector were revised twice by the Ministry of Coal once in 2017 and recently in 2021, the issue of compliance and implementation of water norms has been completely overlooked, the CSE said in a release.

CSE’s programme Director for Industrial Pollution Unit, Nivit Kumar Yadav, said, “This is when many power producing regions of the country are facing acute water shortage. Also there is huge water pollution due to the effluent discharge by the power plants.”

The CSE surveyed more than 154 GW of total coal power capacity and found nearly 50 per cent of the freshwater-based plants to be non-complying. Most of these plants belong to state-owned companies.

The largest number of non-complying plants were from Maharashtra and Uttar Pradesh. Belonging to MahaGENCO (Maharashtra’s power generation company) and UPRVUNL (Uttar Pradesh’s power generation company), a majority of these plants are old with inefficient practices which lead to water wastage.

The CSE survey has found that old and inefficient once-through cooling water-based plants in India continue to operate without installing cooling towers. These plants are not just flouting water norms but also emission norms, the survey added.

Built before 1999, all once-through-based power plants in India are old and polluting. Many of these plants were identified for retirement but have not yet been retired. They continue to operate with no plans to upgrade or install either emission control equipment or cooling towers.

“Allowing these older plants to continue to pollute cannot be an option. Plants identified for retirement must be closed down immediately if they have no plans to retrofit or to install emission control technologies and/or cooling towers,” said Deputy Programme Manager, Industrial Pollution unit of CSE, Sugandha Arora.

As per the CSE’s recent estimates, nearly 48 per cent of India’s existing coal power fleet is located in water-scarce districts like Nagpur and Chandrapur in Maharashtra; Raichur in Karnataka; Korba in Chhattisgarh; Barmer and Baran in Rajasthan; Khammam and Kothagudem in Telangana; and Cuddalore in Tamil Nadu. There have been reports of conflicts over water use between industries and local people.

“This sector has a massive water footprint and therefore, all efforts must be made to mitigate this impact. There is huge scope of reducing the sector’s water demand by ensuring implementation of the 2015 standards and addressing the challenges related to accurate reporting of data, old inefficient once-through cooling plants and implementing zero discharge in newer plants.”

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Calcutta HC allows NGO to distribute relief material in communal violence-hit Murshidabad

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Kolkata, April 17: A single-judge bench of the Calcutta High Court, on Thursday, permitted a non-government organisation (NGO) to visit the communal violence-hit Murshidabad and distribute relief material among the affected people.

While granting permission to the NGO christened ‘Khola Hawa (Open Air)’, which was earlier denied permission by the district administration, the single-judge bench of Justice Amrita Sinha observed that there was no rule that organisations other than government bodies would not have permission to distribute relief materials at any place.

She also observed that the existing law and order problem could not be an excuse for denying permission, since the Central Armed Police Forces (CAPF) were already posted in Murshidabad.

The NGO approached the bench of Justice Sinha after the Murshidabad district magistrate denied permission for its members to visit the troubled spots in the district to distribute relief there. Parts of Murshidabad district in West Bengal have been on the boil last week after protests over the Waqf (Amendment) Act turned violent.

In the petition, the NGO alleged that while the district administration was allowing different political parties to reach the troubled spots with relief materials, the permission to the organisation was deliberately denied.

The matter came up for hearing on Thursday afternoon. The counsel for the NGO argued that there was no reason for the district magistrate to deny the permission since the state Director General of Police had already claimed that the situation at Murshidabad was currently more or less normal. “The NGO members want to go there to distribute relief items like tarpaulin, food, and medicines to those affected,” the counsel of Khola Hawa argued.

Although the state government opposed the arguments, Justice Sinha finally accepted the argument of the counsel of Khola Hawa and permitted the NGO to visit the troubled spots and distribute relief items there.

However, she maintained that only three members of a relief team should visit any troubled spot at a time for the time being. At the same time, these three team members would have to inform the district magistrate at least 24 hours in advance about their visit. The visiting team members, as per the court order, should also not make any provocative statements during the process of relief distribution that might trigger tension in the area again.

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International

Extreme marine heatwaves tripled over past 80 years: Study

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London, April 17: The number of days each year that the world’s oceans experience extreme surface heat has tripled over the past 80 years due to global warming, a new study has found.

Researchers found that, on average, the global sea surface saw about 15 days of extreme heat annually in the 1940s, Xinhua news agency reported.

Today that figure has soared to nearly 50 days per year, revealed the study published in the journal Proceedings of the National Academy of Sciences.

Global warming is responsible for almost half of the occurrence of marine heatwaves — periods when sea surface temperatures rise well above normal for an extended time.

The study, produced by a team of scientists from the Mediterranean Institute for Advanced Studies, the University of Reading, the International Space Science Institute, and the University of the Balearic Islands, also found that rising global temperatures are making extreme ocean heat events last longer and become more intense.

“Marine heatwaves can devastate underwater ecosystems. Extended periods of unusually warm water can kill coral reefs, destroy kelp forests, and harm seagrass meadows,” said Xiangbo Feng, a co-author of the study at the National Centre for Atmospheric Science at the University of Reading.

The impacts of marine heat waves extend beyond the ocean. The researcher warns that increased marine heatwaves could, in return, cause our atmosphere less stable leading to more frequent and powerful tropical storms in some regions.

“As global temperatures continue to rise, marine heatwaves will become even more common and severe, putting increasing pressure on already stressed ocean ecosystems. These increased marine heatwaves could, in return, cause our atmosphere less stable leading to more frequent and powerful tropical storms in some regions,” Feng said

Noting that human activities are fundamentally changing oceans, the study called for urgent climate action to protect marine environments.

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Business

US tariff hikes no longer make economic sense: China

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Beijing, April 17: A Chinese foreign ministry spokesperson said on Thursday that the United States’ 245 per cent tariff on certain products from China no longer makes economic sense.

It the US continues to play the “tariff numbers game”, it will pay no attention to it, according to the spokesperson, Xinhua news agency reported.

The statement came in the wake of White House’s statement that China faces tariffs of up to 245 per cent due to its retaliatory action.

China now faces up to 245 per cent tariffs on imports to the US as a result of its retaliatory tariffs, according to the White House Fact sheet.

This came after Beijing ordered its airlines not to take any further deliveries of Boeing jets in response to the earlier US decision to impose 145 per cent tariffs on Chinese goods.

According to the White House, the US President is open to making a trade deal with China, but Beijing should make the first move.

“More than 75 countries have already reached out to discuss new trade deals. As a result, the individualised higher tariffs are currently paused amid these discussions, except for China, which retaliated,” it said.

The White House also accused Beijing of banning exports to the US of gallium, germanium, antimony, and other key high-tech materials with potential military applications.

There are no winners in a trade conflict and the tussle between China and the US raises the risk of economic and geopolitical fallout, a report by S&P Global Ratings said this week.

Home to sizable manufacturing activities, Asia-Pacific is highly dependent on exports to the U.S. and China for growth. At the same time, Asia-Pacific depends on the US mostly for security.

The region could find itself pushed to take sides or walk a delicate line between the two large economies, the report stated.

To counteract tariffs, Asia-Pacific governments are exploring the formation of regional trade blocs or bilateral trade agreements. These efforts could accelerate, expediting the need to relocate supply sources and production.

China’s economic growth is seeing rising downside risk amid rising trade tensions with the US as its export engine falters from weaker global demand. The country’s domestic growth engine remains subdued, given the lingering real estate crisis, which is dragging down confidence.

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