Shark Week 2018: 3 Shark Stories You Don’t Want to Miss
By Jessica Pink
Editor's note: Shark Week 2018 has kicked off! Before you dive in, take a look at three shark stories from the past week that you should know about. For even more content, check out six of Human Nature's most popular shark stories, including our exploration of "demon whale biters."
The story: Contrary to popular belief, shark attacks aren't as prevalent as many believe them to be, reported Doyle Rice for USA Today July 14. According to research, only five humans died globally this past year from shark attacks—compared to the 100 million sharks that humans kill each year.
The big picture: Due in large part to cultural juggernauts such as the 1975 thriller Jaws, which paint sharks as ruthless human hunters, sharks are often viewed only as attackers. The reality? Many shark species are endangered due to the practice of shark finning, wherein fishers cut off shark fins and throw the severely wounded animals back into the ocean. Prized in Chinese culture, the valuable fins are commonly used in traditional soup or medicine. Shark finning is just one piece of the billion-dollar illegal and unregulated fishing trade, but recent successes in the tracking and prosecuting of illegal fishers could spell hope for the ocean's most notorious predators.
Read more here.
Shark, pictured above, swimming alongside fish in Tuamotu.Rodolphe Holler
The story: Warmer oceans are triggering certain shark species to adapt their migratory patterns, reported Josh Gabbatiss for The Independent July 16. Large shark species including great whites, black tips and hammerheads could soon be moving to British waters.
The big picture: Although certain species of sharks can migrate, others are not as able to adapt. As climate change affects the temperature and acidity of oceans, species such as basking sharks are already suffering. As the ocean becomes more acidic, for example, sharks have a difficult time seeking their prey. Despite this potential increase in the number of different shark species swimming British waters, an expert explained that the actual number of British sharks could, in fact, go down. "We will increase from 40 species to maybe 60, but there will still be less of them—and some of the existing ones will maybe go extinct in the meantime," said Dr. Ken Collins, a former administrator of the UK Shark Tagging Programme.
Read more here.
The big picture: As climate change, pollution and overfishing threaten healthy oceans, sharks offer hope for at least one marine ecosystem: coral reefs. Research shows that in reefs where robust shark populations were found, corals showed faster recovery from bleaching. And the positive impact of sharks stretches further: "Just the fear of sharks can be enough, in many cases, to keep a marine ecosystem healthy and able to respond to stresses," said Mike Heithaus, Florida International University scientist. The continued decline of already threatened shark populations could set off a negative chain of events that would prove devastating to entire marine ecosystems—and the humans that depend on the ocean for their food and livelihoods.
Read more here.
Jessica Pink is an editorial intern for Conservation International.
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California Governor Gavin Newsom signed an executive order Wednesday that would ban the sale of new cars in California that run only on gasoline by the year 2035. The bid to reduce emissions and combat the climate crisis would make California the first state to ban the sale of new cars with internal combustion engines, according to POLITICO.
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A "trash tsunami" has washed ashore on the beaches of Honduras, endangering both wildlife and the local economy.
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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