Toxic Algae Blooms: Fish Are Dying ... Beaches Are Closing ... People Are Getting Sick
Florida's algae problem is the latest reminder that we must act now to protect our waters and combat climate change.
It's as thick as guacamole, but you don't want it near your chips. You don't want it in your water, either, but that's exactly where it is, a sprawling mat of toxic algae the size of Miami, spreading out across Florida's storied Lake Okeechobee and from there along major rivers to the state's Atlantic and Gulf Coasts.
Lake Okeechobee's blue-green algae bloom is visible from space.National Aeronautics and Space Administration
Fish are dying. Beaches are closing. People are getting sick.
"The smell is so bad it will make you gag," Mary Radabaugh told officials at a town hall meeting last week near Palm Beach. "We have red eyes and scratchy throats."
Gov. Rick Scott has declared a state of emergency in affected areas and is pleading with Washington for assistance to cope with widespread threats to the environment and public health.
"South Florida is facing a crisis," Sen. Bill Nelson, D-FL, wrote in a letter July 6 to U.S. Senate leaders. "Beaches and waterways that would normally have been crowded this past Fourth of July weekend were empty as families and vacationers heeded warnings to avoid the toxic blue-green and brown algae blooms that have formed along the waterways and even out into the Atlantic Ocean."
'Guacamole-Thick' Algae Takes Over Florida's Atlantic Coast, 4 Counties Declare State of Emergency https://t.co/r3n8BhYXD4 @TheCCoalition— EcoWatch (@EcoWatch)1467538505.0
The algae blooms that have thrown the Sunshine State into crisis are telling us three things. First, we need to protect our waters from the pollution that breeds these toxic blooms. Next, we need to fight the climate change that brings warmer temperatures that amp up algae growth. And finally, we need to demand real action on both fronts from our elected leaders at every level.
Algae blooms are a national problem. In recent years, we've seen them in water bodies as large as Lake Erie. There are a perennial problem near the mouth of the Mississippi River, where algae blooms strip oxygen from the water, creating a dead zone that threatens shrimp, fish, crabs and other marine life across a span of ocean the size of Connecticut in the rich fisheries of the Gulf of Mexico. They're a growing threat to our environment and health.
The immediate cause of the blooms can vary, but the common basics are these: Rains wash pollution from farms, septic tanks and other sources into our waters—from small streams and wetlands to great rivers and lakes—and municipal sewage systems add waste to these waters. These pollutants then supercharge the waters with nutrients like nitrogen and phosphorus. That feeds a population explosion for algae that feast on these nutrients. Warmer temperatures accelerate the growth.
Algae blooms, though, are toxic. Cyanobacteria is what scientists call them and they can cause skin and respiratory ailments as well as gastrointestinal and liver illness. In large doses, they can even threaten the nervous system. Humans can be affected by coming in direct contact with the algae; swallowing water at the lake, river or ocean; or even breathing water spray in which algae are growing.
Bloom in Lake Okeechobee https://t.co/e9oIOxcqec #NASA https://t.co/tLSPUFbCss— NASA Earth (@NASA Earth)1467813603.0
These toxins threaten marine life, birds and other wildlife as well. In addition, when algae die they decay, a process that robs water of oxygen, which can cause mass fish kills. Finally, a mat of algae like the one covering much of Lake Okeechobee starves underwater plant life of needed sunlight, in turn denying food to fish and other species dependent on those plants.
The fix is to set commonsense limits that keep pollution out of our waters and then to enforce those limits. That means requiring cities and towns to do a better job treating sewage and keeping it from entering the watershed after heavy rains. It means stopping large, concentrated animal feeding operations from dumping massive amounts of waste into our waters. It means applying standards to prevent industrial agricultural operations from polluting our waters with fertilizer that runs off their fields. And it means fighting the climate change that is warming our waters, helping to turn modest seasonal algae growth into crisis-level blooms.
We just wrapped up the hottest June ever recorded in the contiguous U.S.—a blistering 3.3 degrees Fahrenheit above the 20th-century average. Last year was the hottest year globally since record keeping began in 1880 and this year's first five months have been even hotter. Nineteen of the hottest years on record have occurred in the past 20 years.
Turning this around means shifting away from the dirty fossil fuels that are driving global climate change and investing in cleaner, smarter ways to power our future without imperiling the planet. The algae blooms in Florida are a reminder of how much this matters and how urgently we must act.
A "trash tsunami" has washed ashore on the beaches of Honduras, endangering both wildlife and the local economy.
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More long-finned pilot whales were found stranded today on beaches in Tasmania, Australia. About 500 whales have become stranded, including at least 380 that have died, the AP reported. It is the largest mass stranding in Australia's recorded history.
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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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