At Least 18 Dead After Severe Flooding in Central Europe
By Alex Kirby
At least 18 people have lost their lives in central Europe as severe floods engulf the continent from France to Ukraine. In Paris the River Seine reached 6.1 metres (20 feet) above normal, and tens of thousands of people have fled their homes.
The river Seine in Paris has finally peaked, as storms play havoc right across Europe. @benlewismedia reports. https://t.co/xI3T4zhLWa— 7 News Melbourne (@7 News Melbourne)1465115026.0
If the downpours and swollen rivers came as a surprise, they shouldn't have done. Not only are there historical precedents for disastrous floods. There have been graphic recent warnings too, spelling out the growing likelihood that the warming climate will make bouts of flooding and other extreme weather more frequent.
Last March a study reported in the journal Nature said climate change was already driving an increase in extremes of rainfall and snowfall across most of the globe, even in arid regions. The study said the trend would continue as the world warmed.
The role of global warming in unusually large rainfall events in countries from the United Kingdom to China has been hotly debated. But this latest study showed that climate change is driving an overall increase in rainfall extremes.
Its lead author, Markus Donat, a climate scientist at the University of New South Wales in Australia, said: “In both wet and dry regions, we see these significant and robust increases in heavy precipitation."
Warm air holds more moisture, and global warming is already increasing the odds of extreme rainfall. “The paper is convincing and provides some useful insights," Sonia Seneviratne, a climate scientist at the Swiss Federal Institute of Technology, said. “What is particularly new in this article is the demonstration of such a signal for observed changes in dry regions."
The results obtained by Donat and his team suggest that both annual precipitation and extreme precipitation increased by 1-2 percent per decade in dry regions, with wet areas showing similar increases in the extent of extreme precipitation and smaller increases for annual totals.
Their results are in line with a 2015 study by researchers at the Potsdam Institute for Climate Impact Research (PIK) in Germany, which found that global warming has increased the number of record-breaking rainfall events.
Both studies strengthen predictions by models that more extreme weather is in prospect. Donat said their findings were an alert to governments. In a comment which could have been directed at several European countries, he said: “It is probably a good idea to invest in infrastructure that helps in dealing with heavier precipitation, in particular if you are not yet used to those events."
The PIK researchers found that heavy rainfall events setting ever new records had been “increasing strikingly" in the past thirty years. Before 1980 natural variability was enough to explain rainfall fluctuations, they said, but they had detected a clear upward trend in the past few decades towards more unprecedented daily rainfall events.
The researchers said this worldwide increase was consistent with rising global temperatures caused by greenhouse gas emissions from burning fossil fuels. The year 2010 had seen extreme rainfall cause devastating flooding in Pakistan, killing hundreds of people and prompting an outbreak of cholera. There had also been rainstorms in Texas, causing dozens of flash floods.
No fewer than than three supposedly “once-in-a-century" floods occurred in Germany in the space of a couple of years, starting in 1997. “In all of these places, the amount of rain pouring down in one day broke local records – and while each of these individual events has been caused by a number of different factors, we find a clear overall upward trend for these unprecedented hazards", said the PIK study's lead author, Jascha Lehmann.
The team found that from 1980 to 2010 there were 12 percent more of these extreme events than would be expected in what they called “a stationary climate", one without global warming. In the last year they studied, that increase rose to 26 percent.
YOU MIGHT ALSO LIKE
A "trash tsunami" has washed ashore on the beaches of Honduras, endangering both wildlife and the local economy.
EcoWatch Daily Newsletter
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.
- Annual Whale Slaughter Still a Tradition on the Faroe Islands ... ›
- Hundreds of Pilot Whales Die in Devastating Mass Stranding in New ... ›
- Green Group Tests Facebook With Ad Claiming Conservatives Back ... ›
- Illegal Wildlife Trade Thrives on Facebook, Internet Forums ... ›
- Facebook Loophole Allows Climate Deniers to Spread Misinformation ›
- Facebook Hires Koch-Funded Climate Deniers for 'Fact-Checking ... ›
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>
- Sweden to Become One of World's First Fossil Fuel-Free Nation s ... ›
- These Countries Are Leading the Transition to Sustainable Energy ... ›
- Sweden Shuts Down Its Last Coal Plant Two Years Early - EcoWatch ›
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.
- Oxford Endowment Ditches Fossil Fuels in 'Historic' Decision ... ›
- Fossil Fuel Divestment Debates on Campus Spotlight Societal Role ... ›
- London and New York Mayors Call on Other World Cities to Divest ... ›