How are designers dealing with the soaring temperatures of the climate emergency? Ancient desert architecture, Bauhaus buildings or futuristic sustainable cities in Abu Dhabi: Intelligent solutions are already out there.
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Architectural ideas against the heat
Global temperatures are soaring, with climate change leading to hotter summers each year. But can design and architecture help people escape the heat and combat the causes of global warming?
Image: picture alliance/DUMONT Bildarchiv
Air-conditioning is the problem, not the solution
Nothing feels nicer than walking into an air-conditioned room after spending hours in the heat. But the International Energy Agency (IEA) identified the use of A/C as one the key drivers of the growth of electricity demand, accounting for 10% of all global electricity consumption. And all that electricity that needs to be produced somehow — which often involves the burning of fossil fuels.
Image: picture-alliance
Tel Aviv's 'Geddes Plan'
Long before the establishment of Israel in 1948, Scottish urban planner Patrick Geddes consulted the Zionist Commission in 1925 on how the future metropolis of Tel Aviv should be designed to minimize the effects of the desert heat. Its roads were to be built on a grid to channel the sea breeze from the Mediterranean into the city. To this day, the city center hugely benefits from this design.
Image: JACK GUEZ/AFP/Getty Images
Bauhaus: German design is cool, literally
Buildings in Tel Aviv also benefited from the Bauhaus school of architecture and design, which puts an equal emphasis on pragmatism as it does on aesthetics. The Bauhaus penchant for flat roofs, for example, has proven to be useful as they reflect solar heat. With new technology such as the advent of solar panels emerging over time, flat roofs have continued to be popular in hot urban centers.
Image: DW/I. Rottscheidt
Nigeria's chill design
The influence of Bauhaus can be seen elsewhere as well. Israeli architect Arieh Sharon built Obafemi Awolowo University in Nigeria in the 1960s using Bauhaus ideas that have since become the staple of smart design. He addressed the tropical climate by creating space for open gardens and courtyards for the wind to move. Classrooms are always 7 degrees Celsius cooler than the outside temperature.
Image: Keren Kuenberg
Forward thinking: Barcelona
If courtyards provide cooler air, cities like Paris and Barcelona know the way forward. With their city blocks planned around giant courtyards, residents not only benefit from a cooler microclimate but also from living in pleasant surroundings. More recently, the city started changing the way it channels traffic around the more than 500 city blocks in a bid to reduce carbon emissions.
Residents of lower-lying coastal regions have known for a long time that building elevated houses — so-called stilt houses — provides protection against flooding, which is a growing side-effect of global warming. The setup also cools the buildings from underneath. Granted, it is difficult to retrofit existing structures this way, but if you're in the market for coastal property, think stilts!
Image: Reuters/S. Nesius
Building climate-resilient cities
The growing number of so-called natural disasters is directly linked to climate change. When Hurricane Harvey hit Houston in 2017, the city benefited from the intelligent design of its 64-hectare Buffalo Bayou Park, which served as a flood plain bearing the brunt of the flooding. The park itself remained largely unscathed.
Image: Photo by Jim Olive, courtesy of Buffalo Bayou Partnership
Combating climate change and heat in the Middle East
Nowadays, there are cities springing up overnight in the Middle East, providing fresh opportunities to address the effects of climate change from the get-go. Next to Abu Dhabi's airport, there is an entire suburban city being built, designed to be run on renewable energy and have net-zero emissions. Masdar City might be a utopia today but could deliver the blueprints for tomorrow's urban designs.
Image: Masdar
Ancient design from Oman
The street temperature in Abu Dhabi's Masdar City neighborhood is up to 20 degrees Celsius cooler than the heat in the surrounding desert, as a wind tower channels cooler air from the sky and pushes it down to form a cooling breeze. This idea, however, is copied from the ancient city of Muscat, Oman, where taller buildings were designed to channel winds into narrow streets in a similar manner.
Image: picture alliance/DUMONT Bildarchiv
Fixer upper?
While old buildings are charming, they are often built in a way that maximizes the effects of high temperatures, inadvertently contributing to global warming. Some countries like the UK are pushing to retrofit these dwellings with improved insulation in a bid to cut their greenhouse gas emissions by 80%. Such building projects can be costly, with a "deep retrofit" coming at a price tag of €20,000.
Image: Imago/Future Image
Concrete: Hello or goodbye?
To address the climate needs of the future, people have to embrace new building materials. Above all, there's a call to stop the widespread use of concrete with its large carbon footprint. But existing concrete buildings, especially the giant Brutalist structures from the 1960s, are also great heat insulators. So in short: Stop using concrete but make the most use of existing concrete structures.
Image: DW/K. Langer
The future is actively passive
If you're building a house in the near future, think passive. Passive design incorporates features that minimize your impact on the environment. Think smaller windows, overhang roofs, space for solar panels or rooftop gardens, where the rain cools off your building while feeding plants that offset your carbon emissions. And they look great, too.
Image: Sam Oberter Photography
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Europe is currently struck by another heat wave. With temperatures soaring above 40 degrees Celsius (104 Fahrenheit), people are running out of conventional wisdom and little tricks to beat the heat. As global warming is not expected to slow down at the current rate of industrial activity, long-term solutions are desperately needed to address sweltering summers on the continent and beyond.
Ned Cramer, editor-in-chief of Architect magazine goes as far as calling climate change primarily a "design problem" in an article dated October 2017. "The threat climate change poses is existential, and buildings are hugely complicit — even more so than that stock culprit, the automobile," he says, challenging architects and designers around the world to change the way we build homes, offices and entire cities to accommodate warmer temperatures.
Thankfully, there is a long tradition using intelligent design to curb the impact that hot summers can have on human health and well-being — as well as on the planet.
Plenty to learn from other cultures
There is also plenty of ancient wisdom available to learn from. After all, hot temperatures aren't a new occurrence — they are only reaching areas that aren't used to them.
People in desert nations have long adapted, finding ways to keep their lives as cool as possible way before the advent of electricity allowed them to even consider air conditioning. Cultures in the Far East have a long history of building houses on stilts, not only to protect their homes from flooding, but also to allow for a cooling mechanism from underneath. This has been copied in coastal areas of the US, especially in fishing communities along the Gulf of Mexico.
In more recent history, urban centers in Europe have prepared for long, hot summers by incorporating courtyards and parks into their city planning. Among other design schools, Bauhaus architects incorporated some practical solutions to make their buildings cope with the climate more efficiently over the past century.
Scroll through the gallery above to discover more of those solutions from the past, present and future to beat the heat.
Heat waves hit parched Europe, US and China
Summer 2019 is packing a punch around the world, with parts of Europe, the US and China all sweltering under oppressive temperatures in recent days. Germany could break its all-time heat record on Thursday.
Image: picture-alliance/dpa/R. Traut
Summer 2019 continues to sizzle Europe
This week, Germany and western Europe are bracing for another record-breaking week of heat. A high-pressure "heat dome" could send temperatures towards 40 degrees Celsius (104.5 Fahrenheit) on Wednesday, probably peaking on Thursday. The German Weather Service (DWD) issued a heat warning for the entire country for Wednesday and Thursday. The heat is expected to last until the weekend.
Image: picture-alliance/dpa/T. Warnack
New German heat record?
A dried-out park in Cologne. DWD meteorologists said that temperatures on Thursday in the heavily populated areas around Cologne and the Ruhr region in western Germany could break the country's all-time heat record of 40.3 C (104 F) — set in the Bavarian village of Kitzingen in 2015. This heat wave could be "one for the history books" said a DWD spokesperson on Monday.
Image: picture-alliance/dpa/O. Berg
The heat knows no borders
The French weather service said temperatures in Paris on Thursday are forecast to reach a stifling 42 C (107 F), which would break the city's all-time heat record of 40.4 C (104.7 F) that has stood for over 70 years. The UK could also break its heat record of 38.5 C (101 F) on Thursday.
Image: Getty Images/AFP/K. Tribouillard
Cool off however you can
Air conditioners are uncommon in Germany. Those in the north can cool off by the sea, but people living in the rest of the country will pack into public pools or wade into rivers and lakes. Residents of Munich often cool off in the Isar River, which cuts through the city. June 2019 was the hottest June ever recorded in Germany.
Image: picture-alliance/dpa/P. Kneffel
Damage to highways
Highways can buckle under extreme heat, as on this autobahn highway in Lower Saxony in northern Germany. These so-called "blow ups" happen suddenly and are very dangerous for drivers. Authorities in Germany often issue temporary speed limits on highways during heat waves in a bid to limit the risks.
Image: picture-alliance/dpa/C. Butt
Not a good day for a race
Cyclists are slogging through 40 C (104 F) heat during the decisive week of a thrilling Tour de France, as the race route crosses through the country's scorched southeast. Organizers set up ice foot baths and extra water stations. The pros often have no choice, but health authorities advise against outdoor exercise in extreme temperatures.
Image: picture-alliance/dpa/D. Stockman
Storms break US heat wave
Washington, New York and Boston on the the US east coast experienced record heat over the weekend. A cold front broke the heat wave on Tuesday, bringing severe thunderstorms that caused flooding and power outages in New York and New Jersey. On Cape Cod, a popular vacation destination in Massachusetts, a rare tornado ripped the roof off a hotel.
Image: Getty Images/S. Eisen
China uses old fashioned air conditioning
Workers manufacture ice blocks at a factory in China's eastern Anhui province. A heat wave is currently gripping parts of eastern China, including Beijing, with temperatures this week ranging from 33 to 37 C (91-98 F). The heat has created a spike in demand for ice.
Image: picture-alliance/dpa/M. Fengcheng
The earth is getting hotter
According to the North American Atmospheric Association (NOAA), this past June was the hottest ever recorded worldwide — and NOAA predicts that July 2019 is on track to be the hottest month since records began 140 years ago. Climate scientists warn that the unprecedented heat waves seen in 2019 will be normal weather events in the future.