Conservation Works: At Least 28 Birds and Mammals Have Been Saved from Extinction Since 1993
"We usually hear bad stories about the biodiversity crisis and there is no doubt that we are facing an unprecedented loss in biodiversity through human activity," said study coauthor and Newcastle University professor of conservation science and policy Phil McGowan, reported Phys.org. "The loss of entire species can be stopped if there is sufficient will to do so. This is a call to action: showing the scale of the issue and what we can achieve if we act now to support conservation and prevent extinction."
The research was led by Newcastle University and BirdLife International to assess the effectiveness of the UN Convention on Biological Diversity (CBD), which came into force in 1993, and specifically its Aichi Target 12, which set the goal to "prevent extinctions of known threatened species," according to the study.
From 1993 to 2020, the lifetime of the CBD, conservation actions prevented 21 to 32 bird extinctions and seven to 16 mammal extinctions, for a total of 28 to 48 animals saved from the brink. Between 2010 and 2020, the timing of Aichi Target 12, conservationists prevented 9 to 18 bird extinctions and two to seven mammal extinctions.
Since 1993, 15 birds and mammals are sadly believed to have gone extinct. However, the research reveals that the extinction rates for both groups would have been 2.9 to 4.2 times higher without any action.
"These results show that despite the overall failure to meet the targets for conserving nature set through the UN a decade ago, significant success in preventing extinctions was achieved," said study instigator and BirdLife International chief scientist Dr. Stuart Butchart, reported Phys.org. "This should encourage governments to reaffirm their commitment to halt extinctions and recover populations of threatened species in the post-2020 Global Biodiversity Framework currently being negotiated. Such a commitment is both achievable and essential to sustain a healthy planet."
The Guardian explained that researchers came to their conclusions by using information on population size, trends, threats and conservation efforts from 137 global experts. From there they narrowed a list of 17,046 bird and mammal species to 81 that were listed as threatened on the International Union for Conservation of Nature (IUCN)'s red list. "The details were then used to calculate the likelihood that each species would have become extinct without conservation measures," the Guardian reported.
Species saved included the Iberian lynx, California condor and pygmy hog. Some of these, like the California condor, are major success stories. Others, like the vaquita porpoise, are still struggling.
"It is encouraging that some of the species we studied have recovered very well. Our analyses therefore provide a strikingly positive message that conservation has substantially reduced extinction rates for birds and mammals. While extinctions have also occurred over the same time period, our work shows that it is possible to prevent extinctions," said lead study author Dr. Rike Bolam from Newcastle University, reported Phys.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
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