News: a conceptual proposal for huge buoyant umbrellas that rebuild polar ice caps has been awarded first prize in this year's eVolo Skyscraper Competition.
Designed by American architect Derek Pirozzi, the Polar Umbrella concept would see giant umbrella-shaped structures freeze sea water to replenish arctic ice shelves in areas worst affected by global warming.
The vast canopies would harvest solar energy and reduce heat gain underneath, and be integrated with a system of polyethylene pipes to pump up brackish water. The structures would contain a desalinisation plant, research facilities and accommodation, plus use salt water to produce renewable energy by osmosis.
An idea to use stacks of modular, prefabricated housing units to regenerate industrial neighbourhoods in Paris (above) came second in the competition and third place was awarded to a floating city extension suspended beneath a giant balloon (below).
Organised by architecture magazine eVolo, the annual competition recognises inventive and futuristic skyscraper proposals. A tower constructed from rubbish in São Paulo was one of last year's entries.
More fantastical skyscrapers on Dezeen include a tower that uses algae to produce energy and a building with observation decks floated on helium balloons.
- Bicycle Club by NL Architects
- Gingerbread House by Laura Dewe Mathews
- Messner Mountain Museum Corones by Zaha …Hadid Architects
- Pezo von Ellrichshausen's Casa Cien is a… home and studio with a bumpy concrete finish
- Elsa Morante Library by DAP Studio
- Rogers Stirk Harbour + Partners hands ov…er the Leadenhall Building for fit out
- Nursery in Sarreguemines by Michel Grass…o and Paul Le Quernec
- Library and Learning Centre in Vienna by… Zaha Hadid Architects
- House on Zaru Street by Open AD
Sign up for a daily roundup
of all our stories