U.S. Air Pollution Is Getting Worse Under Trump, New Study Finds
Tweeting that the U.S. has the cleanest air in the world does not make it so. Not only do we rank 10th, but a new study says that after steady improvement during the Obama-era, air pollution has gotten worse while Donald Trump has been president.
The report issued by the National Bureau of Economic Research found that fine particle air pollution, known as PM2.5, dropped by 24.2 percent from 2009 to 2016. However, in the following two years, it increased an average of 5.5 percent each year. PM2.5 is particularly concerning because its microscopic size means it can easily enter the respiratory tract and be absorbed into the blood stream.
NEW: Recent increases in air pollution are estimated to have killed 9,700 Americans in 2018. (The relevant pollutan… https://t.co/Dp1zqDDB4v— Cass Sunstein (@Cass Sunstein)1571675899.0
"The health implications of this increase in PM2.5 between 2016 and 2018 are significant," the study's abstract says. "The increase was associated with 9,700 additional premature deaths in 2018. At conventional valuations, these deaths represent damages of $89 billion."
The trend toward cleaner air that has now been reversed has several causes, including deregulation of industry, loosening of the Clean Air Act and an increase in wildfires. Two economists from Carnegie Mellon University, Karen Clay and Nicholas Muller, performed the study.
The growth of the U.S. economy coupled with looser regulations has led to an increase in diesel powered trucks and other polluting-emitting vehicles on the roads, as well as boosted manufacturers' carbon emissions, Clay and Muller wrote, as CBS News reported.
"The chemical composition of particulates point to increased use of natural gas and to vehicle miles traveled as likely contributors to the increase" in pollution, the economists wrote, as CBS News reported. "We conclude that the effect is due to diesel vehicles as well as some industrial boilers."
Fine particles are worrying since they easily cause lung damage, collect in the brain and send people to the emergency room, as The Washington Post reported. The data shows that airborne particles have an association with dementia and cognitive decline. These effects often occur at levels far below the current regulatory threshold.
The increases in particulate matter were particularly high in the west, especially in California. The authors noted that California experienced a large increase in particulate matter since a large segment of the population was exposed to wildfires and vehicular pollution and the state represented "a large share of the increase in premature mortality," as the non-profit StreetsBlog reported.
"Because of these large increases and the large exposed population in California, we find that nearly 43% of the increase in deaths nationally from 2016 to 2018 occurred in California," the study authors said, as CBS News reported.
However, it is a mistake to point to the spate of wildfires as the culprit. The economists ran the numbers without the devastating fires that engulfed California last November and they found the wildfires do not account for the general decline in air quality and the reversal of the trend in air pollution, according to the Cal StreetsBlog.
The decline in the demand for coal has helped, but it has not been enough to offset the rise in emissions from increased use of natural gas, people driving more, and an increase in trucks crisscrossing the country and idling on city streets, according to the Washington Post.
The study authors say that since our growing understanding of air particulate matter's deleterious effects on human health that the recent wave of rollbacks on environmental regulations is particularly concerning in light of the reversing trend in air quality since 2016, as the Washington Post reported.
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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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