In a troubling sign for the future of the Italian Alps, the snow and ice in a glacier is turning pink due to the growth of snow-melting algae, according to scientists studying the pink ice phenomenon, as CNN reported.
By Josh Bonifield
The Australian brewery Young Henrys is working to fight climate change with an unusual ingredient—algae.
EcoWatch Daily Newsletter
During summer in central New York, residents often enjoy a refreshing dip in the region's peaceful lakes.
But sometimes swimming is off-limits because of algae blooms that can make people sick.
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Coastal Antarctica has seen has a curious phenomenon over the last few years. The green snow that hugs parts of its shores has started to spread farther inland. And it's all caused by the climate crisis.
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Beachgoers in California are enjoying a dazzling display of crashing bioluminescent waves in Southern California. The waves light up at night as they crash and froth in the shallow water, The Guardian reported.
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Algae in a pond may look flimsy. But scientists are using algae to develop industrial-strength material that's as hard as steel but only a fraction of the weight.
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The toxic algae blooms that have killed dogs in Texas, North Carolina and Georgia have been detected in three New York City parks. Parents and pet owners are being warned to keep their kids and dogs away from the infected water, which can be fatal when dogs lap it up, swallow it while swimming, or lick it off their own fur, as the New York Times reported.
By Grace Francese
Outbreaks of potentially toxic algae are fouling lakes, rivers and other bodies of water across the U.S. Nationally, news reports of algae outbreaks have been on the rise since 2010.
What are algae blooms?<p>These smelly blooms <a href="https://www.youtube.com/watch?v=8tZooDsX8Fo" target="_blank">aren't actually algae at all</a>, but photosynthetic microorganisms called cyanobacteria.</p><p>Runoff from farm fields is often polluted with phosphorous and other chemicals in manure and commercial fertilizers. When this polluted runoff gets into lakes, it feeds the growth of cyanobacteria, especially in warm weather. Increasingly heavy rains and flooding, exacerbated by the climate crisis, make the problem worse. </p>
What are microcystins?<p>Many algae blooms are gross, forming a foul-smelling slime on a lake's surface, but not hazardous. But for reasons no one yet understands, some produce poisonous chemicals called cyanotoxins, including the group known as microcystins.</p>
What are the health risks?<p>Microcystin-producing cyanobacteria are a hazard to anyone, but the <a href="https://www.cdc.gov/habs/" target="_blank">Centers for Disease Control and Prevention</a> says children are especially vulnerable, since they're most likely to ingest water while swimming. Exposure can cause coughing, nausea, weakness, cramping and headaches, as well as long-term health effects such as liver failure.</p><p>Contact with skin, drinking <a href="https://www.ewg.org/toxicalgalblooms/#map" target="_blank">contaminated tap water</a> or eating contaminated fish can also cause health problems. Even breathing in microcystins can be harmful, and recent studies have shown that the <a href="https://www.news-press.com/story/tech/science/environment/2019/03/15/new-health-questions-raised-fgcu-research-toxic-algae-dust/3176195002/" target="_blank">toxins can become airborne</a>, drifting a mile or more from the site of the outbreak.</p>
How can I recognize and avoid algae blooms?<p>The best approach is to check with your city, county or state health departments, which may issue warnings. You can also use EWG's <a href="https://www.ewg.org/interactive-maps/2019_microcystin/map/" target="_blank">map</a>to see whether authorities have found microcystins in a particular lake in the past few years.</p><p>If you can't find information about a specific lake, get to know the <a href="https://www.youtube.com/watch?v=xsgg2rqPKEE&feature=youtu.be" target="_blank">warning signs</a>. Look out for dead fish or animals in or near the water, and slime that looks like blue, blue-green, bright green or dark green spilled paint.</p><p>Only experts who test the water can determine definitively whether an algae bloom is toxic. So if you come across what looks like an algae outbreak, stay away – even if you're not sure it's toxic. Don't swim in it, and do your best to avoid breathing the air around it. Contact your health department and alert local news media.</p>
What should I do if I think my child has been exposed to a toxic algae outbreak?<p>If you think your child has come into contact with toxic algae, or shows flu-like symptoms after playing in or near it, rinse them off with water. Make sure they also drink plenty of water. Seek medical attention as soon as possible.</p>
How can we prevent algae blooms?<p>Farming practices like vegetative buffers along streams and rivers help minimize runoff, but these practices won't be widely implemented without regulations that require farmers to apply them. </p><p>Ideally, states would test lakes and other bodies of water for microcystins and other cyanotoxins and warn the public when there's danger. But EWG's new report found that only 20 states test regularly for microcystins and make the data public, and often only after a delay.</p><p>The Environmental Protection Agency should regulate these toxins to protect our tap water supplies. <a href="https://nepis.epa.gov/Exe/ZyPDF.cgi/P100N2VG.PDF?Dockey=P100N2VG.PDF" target="_blank">More than two-thirds</a> of all Americans get their drinking water from utilities that rely at least in part on lakes, rivers or other surface water. Yet the EPA doesn't regulate the level of microcystins and other cyanotoxins in drinking water.</p><p>For more info about toxic algae outbreaks, check out this <a href="https://www.ewg.org/news-and-analysis/2019/05/toxic-algae-blooms-what-you-should-know" target="_blank">overview</a>. EWG also maintains a resource center on algae blooms <a href="https://www.ewg.org/key-issues/water/toxicalgae" target="_blank">here</a>.</p>
Pet owners around the country are seeing their beloved canines perish after letting them cool off in waters harboring toxic algae.
Less than a week after the official start of summer, New Jersey's largest lake was shut down by state officials due to a harmful algae bloom. Now, well into the heart of summer, Lake Hopatcong remains closed. And, several other lakes that have seen their waters turn green due to a rise in cyanobacteria have also been shut down, including Budd Lake and parts of Greenwood Lake.
By Donald Scavia
Every year in early summer, scientists at universities, research institutions and federal agencies release forecasts for the formation of "dead zones" and harmful algal blooms in the Gulf of Mexico, the Chesapeake Bay and Lake Erie. This year the outlook is not good.
Dead zone and harmful algal bloom trends with 2019 forecasts in red.
Nutrient load trends; 2019 loads in red.
Under a worst-case climate change scenario, in which global temperatures rise nearly 5 degrees Celsius above preindustrial levels by 2100, very heavy precipitation events in the Midwest, Great Plains and Southeast regions would increase sharply.
A two-stage ditch has a low-ﬂow channel and a vegetated side 'benches' that are ﬂooded during higher ﬂows. The grass slows water flow and allows nutrients to settle out.
Ohio State University Extension, CC BY
AT Kearney, CC BY-ND
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