Water Scarcity Threat to India and South Africa
Cape Town: Three months to Day Zero? SkyPixels / Wikimedia Commons
By Alex Kirby
Water scarcity is now a real threat in two developing countries at the forefront of efforts to reduce climate change, India and South Africa.
This is not the tragically familiar story of extreme weather, stunted crops and foreshortened lives. It is a different sort of threat: to urban life, to industrial development and to attempts to end poverty.
More than 80 percent of India's electricity comes from thermal power stations, burning coal, oil, gas and nuclear fuel. Now researchers from the U.S.-based World Resources Institute (WRI), after analyzing all of India's 400+ thermal power plants, report that its power supply is increasingly in jeopardy from water shortages.
The researchers found that 90 percent of these thermal power plants are cooled by freshwater, and nearly 40 percent of them experience high water stress. The plants are increasingly vulnerable, while India remains committed to providing electricity to every household by 2019.
Between 2015 and 2050 the Indian power sector's share of national water consumption is projected to grow from 1.4 to nine percent, and by 2030, 70 percent of the country's thermal power plants are likely to experience increased competition for water from agriculture, industry and municipalities.
Power Sector Choking
"Water shortages shut down power plants across India every year," said O P Agarwal of WRI India. "When power plants rely on water sourced from scarce regions, they put electricity generation at risk and leave less water for cities, farms and families. Without urgent action, water will become a chokepoint for India's power sector."
Between 2013 and 2016 14 of India's 20 largest thermal utility companies experienced one or more shutdowns because of water shortages. WRI calculates that shutdowns cost these companies over INR 91 billion ($1.4 billion) in potential revenue from the sale of power.
It says water shortages canceled out more than 20 percent of the country's growth in electricity generation in 2015 and 2016.
The report offers solutions, including notably a move towards solar and wind energy. India already has a target for 40 percent of its power to come from renewables by 2030, under the Paris agreement on climate change.
"Renewable energy is a viable solution to India's water-energy crisis," said Deepak Krishnan, co-author of the report. "Solar PV and wind power can thrive in the same water-stressed areas where thermal plants struggle …"
A policy brief produced by WRI and the International Renewable Energy Agency details ways for India's power sector to reduce water usage and carbon emissions by 2030.
In Africa the dangers of water scarcity for one of the continent's best-known cities, Cape Town, are imminent and, some believe, almost apocalyptic.
The city faces the prospect within three months of becoming the world's first major city to run out of water, al-Jazeera reported.
It said the city's water supplies are now so low that in late April it will declare "Day Zero," the day when its reservoirs fall below a combined capacity of 13.5 percent.
This will mean Cape Town turning off the taps, except in the poorest neighborhoods, and installing around 200 water collection sites across the city.
Water usage in the Western Cape province, which includes Cape Town, is now limited to a daily ration of 87 liters per person. If Day Zero dawns, that will drop to about 25 liters. The World Health Organization said about 20 liters should be enough "to take care of basic hygiene needs and basic food hygiene."
Rains Start Later
The province has had three years of drought. Kevin Winter, a senior lecturer in environmental science at the University of Cape Town, told al-Jazeera that as a winter rainfall region, people would normally expect rainfall to start somewhere around April.
"But that's no longer the case, it comes a whole lot later at the end of June, or in early July, if we are lucky," he said. "We are experiencing a rapid change in our weather patterns, which is increasingly evident of a climate change…"
Bridgetti Lim Bandi, who has lived in the city all her life, said Cape Town's rainfall pattern had changed dramatically within the last two decades. "We don't have a traditional Cape Town winter any more," she told al-Jazeera.
Helen Zille is premier of the Western Cape province. She wrote on Jan. 22 in the Daily Maverick: "The question that dominates my waking hours now is: When Day Zero arrives‚ how do we make water accessible and prevent anarchy?
"And if there is any chance of still preventing it‚ what is it we can do? … the challenge exceeds anything a major city has had to face anywhere in the world since the Second World War or 9/ll."
Reposted with permission from our media associate Climate News Network.
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Wisdom the mōlī, or Laysan albatross, is the oldest wild bird known to science at the age of at least 70. She is also, as of February 1, a new mother.
<div id="dadb2" class="rm-shortcode" data-rm-shortcode-id="aa2ad8cb566c9b4b6d2df2693669f6f9"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1357796504740761602" data-partner="rebelmouse"><div style="margin:1em 0">🚨Cute baby alert! Wisdom's chick has hatched!!! 🐣😍 Wisdom, a mōlī (Laysan albatross) and world’s oldest known, ban… https://t.co/Nco050ztBA</div> — USFWS Pacific Region (@USFWS Pacific Region)<a href="https://twitter.com/USFWSPacific/statuses/1357796504740761602">1612558888.0</a></blockquote></div>
By Hui Hu
Winter is supposed to be the best season for wind power – the winds are stronger, and since air density increases as the temperature drops, more force is pushing on the blades. But winter also comes with a problem: freezing weather.
Comparing rime ice and glaze ice shows how each changes the texture of the blade. Gao, Liu and Hu, 2021, CC BY-ND
Ice buildup changes air flow around the turbine blade, which can slow it down. The top photos show ice forming after 10 minutes at different temperatures in the Wind Research Tunnel. The lower measurements show airflow separation as ice accumulates. Icing Research Tunnel of Iowa State University, CC BY-ND
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theDOCK aims to innovate the Israeli maritime sector. Pexels<p>The UN hopes that new investments in ocean science and technology will help turn the tide for the oceans. As such, this year kicked off the <a href="https://www.oceandecade.org/" target="_blank" rel="noopener noreferrer">United Nations Decade of Ocean Science for Sustainable Development (2021-2030)</a> to galvanize massive support for the blue economy.</p><p>According to the World Bank, the blue economy is the "sustainable use of ocean resources for economic growth, improved livelihoods, and jobs while preserving the health of ocean ecosystem," <a href="https://www.sciencedirect.com/science/article/pii/S0160412019338255#b0245" target="_blank" rel="noopener noreferrer">Science Direct</a> reported. It represents this new sector for investments and innovations that work in tandem with the oceans rather than in exploitation of them.</p><p>As recently as Aug. 2020, <a href="https://www.reutersevents.com/sustainability/esg-investors-slow-make-waves-25tn-ocean-economy" target="_blank" rel="noopener noreferrer">Reuters</a> noted that ESG Investors, those looking to invest in opportunities that have a positive impact in environmental, social and governance (ESG) issues, have been interested in "blue finance" but slow to invest.</p><p>"It is a hugely under-invested economic opportunity that is crucial to the way we have to address living on one planet," Simon Dent, director of blue investments at Mirova Natural Capital, told Reuters.</p><p>Even with slow investment, the blue economy is still expected to expand at twice the rate of the mainstream economy by 2030, Reuters reported. It already contributes $2.5tn a year in economic output, the report noted.</p><p>Current, upward <a href="https://www.ecowatch.com/-innovation-blue-economy-2646147405.html" target="_self">shifts in blue economy investments are being driven by innovation</a>, a trend the UN hopes will continue globally for the benefit of all oceans and people.</p><p>In Israel, this push has successfully translated into investment in and innovation of global ports, shipping, logistics and offshore sectors. The "Startup Nation," as Israel is often called, has seen its maritime tech ecosystem grow "significantly" in recent years and expects that growth to "accelerate dramatically," <a href="https://itrade.gov.il/belgium-english/how-israel-is-becoming-a-port-of-call-for-maritime-innovation/" target="_blank" rel="noopener noreferrer">iTrade</a> reported.</p><p>Driving this wave of momentum has been rising Israeli venture capital hub <a href="https://www.thedockinnovation.com/" target="_blank" rel="noopener noreferrer">theDOCK</a>. Founded by Israeli Navy veterans in 2017, theDOCK works with early-stage companies in the maritime space to bring their solutions to market. The hub's pioneering efforts ignited Israel's maritime technology sector, and now, with their new fund, theDOCK is motivating these high-tech solutions to also address ESG criteria.</p><p>"While ESG has always been on theDOCK's agenda, this theme has become even more of a priority," Nir Gartzman, theDOCK's managing partner, told EcoWatch. "80 percent of the startups in our portfolio (for theDOCK's Navigator II fund) will have a primary or secondary contribution to environmental, social and governance (ESG) criteria."</p><p>In a company presentation, theDOCK called contribution to the ESG agenda a "hot discussion topic" for traditional players in the space and their boards, many of whom are looking to adopt new technologies with a positive impact on the planet. The focus is on reducing carbon emissions and protecting the environment, the presentation outlines. As such, theDOCK also explicitly screens candidate investments by ESG criteria as well.</p><p>Within the maritime space, environmental innovations could include measures like increased fuel and energy efficiency, better monitoring of potential pollution sources, improved waste and air emissions management and processing of marine debris/trash into reusable materials, theDOCK's presentation noted.</p>
theDOCK team includes (left to right) Michal Hendel-Sufa, Head of Alliances, Noa Schuman, CMO, Nir Gartzman, Co-Founder & Managing Partner, and Hannan Carmeli, Co-Founder & Managing Partner. Dudu Koren<p>theDOCK's own portfolio includes companies like Orca AI, which uses an intelligent collision avoidance system to reduce the probability of oil or fuel spills, AiDock, which eliminates the use of paper by automating the customs clearance process, and DockTech, which uses depth "crowdsourcing" data to map riverbeds in real-time and optimize cargo loading, thereby reducing trips and fuel usage while also avoiding groundings.</p><p>"Oceans are a big opportunity primarily because they are just that – big!" theDOCK's Chief Marketing Officer Noa Schuman summarized. "As such, the magnitude of their criticality to the global ecosystem, the magnitude of pollution risk and the steps needed to overcome those challenges – are all huge."</p><p>There is hope that this wave of interest and investment in environmentally-positive maritime technologies will accelerate the blue economy and ESG investing even further, in Israel and beyond.</p>
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