Drought Drains Lake Mead to Lowest Level as Nevada Senator Calls for Government Audit
As the largest reservoir in the U.S. falls to its lowest water level in history, Nevada State Sen. Tick Segerblom introduced a bill title and issued a press release on July 8 calling for an “independent scientific and economic audit of the Bureau of Reclamation’s strategies for Colorado River management.”
Sen. Segerblom’s position represents the growing political impatience with the current management system for the river. He takes hard aim at the Bureau of Reclamation as being responsible for these problems as he says, “Reclamation may have played a major role in erecting our Colorado River infrastructure, but it’s clearly time for people across the basin to begin leading its future management.”
Further, the Senator calls for a more environmentally minded management focus on the health of the river as stated in his press release: “Healthy rivers signal healthy societies, yet Reclamation failed to mention ecological issues in its recent analysis. The Colorado River is a river of national parks, but the river running through them is struggling.”
This week’s history-making, bad-news event at Lake Mead has already triggered lots of news stories, but almost all of these stories focus on the water supply for Las Vegas, Phoenix and California. But what about the health of the river itself? Senator Segerblom’s press release reminds us that this river is more than just water supply for cities and farms—it’s a living entity full of species that depend on the river for survival, and as the lake level falls, the first entity to feel even more pain won’t be Las Vegas or Phoenix but rather the river itself.
Let’s take a look at the environmental problems with the Colorado River and how they are getting worse. Grab a cup of coffee because this is a buzzkill:
- Four federally listed endangered fish continue to struggle to survive in the Colorado River, but managers’ answer to this problem is to continually spawn and restock the fish, not to address the underlying problem of too many dams and diversions.
- Many of the tributaries flowing into the Colorado River are severely depleted, and some, like the Gila River in Arizona, are completely drained dry almost every year.
- The ecological health of the Grand Canyon is severely degraded and imperiled—what was once a wild and brown frothy foment of a river filled with native fish, canyon-carving sediment and warm-water organisms is now a cold, clear-green, somewhat sterile and completely controlled dam/drainage system that has not been adequately mitigated or fixed.
- Climate change models indicate the decrease in flow in the Colorado River could be significantly more than Bureau of Reclamation is planning for, yet mangers have not even grappled with the last 15 years of drought let alone what climate change may increasingly offer.
- As river flows drop, as lake levels drop, and as climate change models indicate worsening conditions, cities and water districts in Colorado, Wyoming, Utah, New Mexico and Arizona are proposing even more dams and diversions out of the Colorado River system. All the states and the cities are trying to get the last legally allowed drop of water out of the river before someone else does.
- Almost 1/12 of the entire flow of the Colorado River simply evaporates into thin air or seeps away into the ground surrounding all of the reservoirs, yet the river’s managers are not considering ways to mitigate or fix this loss to water supplies as well as to river health from the 50 to 100-year old dam and reservoir system.
To address these problems as well as water supply threats, the Bureau of Reclamation spent years creating the Colorado River Basin Study and released it publicly in 2012 with much fanfare. Since that time, Reclamation has appointed several “Working Groups” to further study the problem and offer solutions—including a “Healthy Flows Working Group”—but over a year has passed without public communication about recommendations or solutions.
To be fair, it’s not completely all bad news—there are a few glimmers of hope around the Colorado River basin too. The effort by the Bureau to restore the Colorado River Delta has been positive, environmental groups’ work to stop and stall new water projects has made a difference, and a few cities’ new pilot project, Colorado River System Conservation Program, offers a potential path forward.
But despite these glimmers of hope, there’s one overwhelming fact in the Colorado River ecosystem and it’s painted bright white with the increasing size of the bathtub ring across the walls of Lake Mead—we are draining more water out of the system than the river is putting in.
Whether you agree or disagree with Sen. Segerblom’s approach, something needs to change to address the water supply threats, and something must change as soon as possible to arrest the continual decline of the health of the Colorado River. The system, and the health of the river itself, cannot be sustained the way it’s currently operated.
Gary Wockner, PhD, coordinates the Save The Colorado River Campaign whose mission is to protect and restore the Colorado River and its tributaries from the source to the sea. Gary@SaveTheColorado.org.
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By Harry Kretchmer
By 2030, almost a third of all the energy consumed in the European Union must come from renewable sources, according to binding targets agreed in 2018. Sweden is helping lead the way.
Sweden is a world leader in renewable energy consumption. Swedish Institute/World Bank
Naturally Warm<p>54% of Sweden's power comes from renewables, and is helped by its geography. With plenty of moving water and 63% forest cover, it's no surprise the <a href="https://sweden.se/nature/energy-use-in-sweden/#" target="_blank">two largest renewable power sources</a> are hydropower and biomass. And that biomass is helping support a local energy boom.</p><p>Heating is a key use of energy in a cold country like Sweden. In recent decades, as fuel oil taxes have increased, the country's power companies have turned to renewables, like biomass, to fuel local 'district heating' plants.</p><p>In Sweden these trace their <a href="https://www.sciencedirect.com/science/article/pii/S0360544217304140#fig3" target="_blank">origins back to 1948</a>, when a power station's excess heat was first used to heat nearby buildings: steam is <a href="https://www.sciencedirect.com/topics/engineering/district-heating-system" target="_blank">forced along a network of pipes</a> to wherever it's needed. Today, there are around 500 district heating systems across the country, from major cities to small villages, providing heat to homes and businesses.</p><p>District heating used to be fueled mainly from the <a href="https://www.sciencedirect.com/science/article/pii/S0360544217304140" target="_blank">by-products of power plants</a>, waste-to-energy plants and industrial processes. These days, however, Sweden is bringing more renewable sources into the mix. And as a result of competition, this localized form of power is now the country's<a href="https://www.sciencedirect.com/science/article/pii/S0360544217304140#fig3" target="_blank" rel="noopener noreferrer"> home-heating market leader.</a></p>
Sweden is using smart grids to turn buildings into energy producers. Huang et al/Elsevier
Energy ‘Prosumers’<p>But Sweden doesn't stop at village-level heating solutions. Its new breed of energy-generation takes hyper-local to the next level.</p><p>One example is in the city of Ludivika where 1970s flats <a href="https://www.buildup.eu/sites/default/files/content/transforming-a-residential-building-cluster-into-electricity-prosumers-in-sweden.pdf" target="_blank">have recently been retrofitted with the latest smart energy technology</a>.</p><p>48 family apartments spread across 3 buildings have been given photovoltaic solar panels, thermal energy storage and heat pump systems. A micro energy grid connects it all, and helps charge electric cars overnight.</p><p>The result is a cluster of 'prosumer' buildings, producing rather than consuming enough power for 77% of residents' needs. With <a href="http://www.diva-portal.org/smash/get/diva2:1232060/FULLTEXT01.pdf" target="_blank" rel="noopener noreferrer">high levels of smart meter usage</a>, it's a model that looks set to spread across Sweden.</p>
<div id="d7bf9" class="rm-shortcode" data-rm-shortcode-id="8757b138d5570bec9d6aad18074a429a"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1273556364263071744" data-partner="rebelmouse"><div style="margin:1em 0">Read more about Western Harbour and book a visit: https://t.co/ujSmVs9rNK 🏡🌳🌊 https://t.co/C5PuPziqIM</div> — Smart City Sweden (@Smart City Sweden)<a href="https://twitter.com/SmartCitySweden/statuses/1273556364263071744">1592474473.0</a></blockquote></div>
Scaling Up<p>A recent development by E.ON in Hyllie, a district on the outskirts of Malmö, southern Sweden, <a href="https://www.eonenergy.com/blog/2019/February/sweden-smart-city" target="_blank">has scaled up the smart grid principle</a>. Energy generation comes from local wind, solar, biomass and waste sources.</p><p>Smart grids then balance the power, react to the weather, deploying extra power when it's colder or putting excess into battery storage when it's warm. The system is not only more efficient, but bills have fallen.</p><p>Smart energy developments like those in Hyllie, Ludivika, and renewable-driven district heating, offer a radical alternative to the centralized energy systems many countries rely on today.</p><p>The EU's leaders have a challenge: how to generate 32% of energy from renewables by 2030. Sweden offers a vision of how technology and local solutions can turn a goal into a reality.</p>
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By Jessica Corbett
In another win for climate campaigners, leaders of 12 major cities around the world — collectively home to about 36 million people — committed Tuesday to divesting from fossil fuel companies and investing in a green, just recovery from the ongoing coronavirus pandemic.
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