Seven up: the best green skyscrapers

A rotating skyscraper that is to be built in Dubai and powered by a series of 79 horizontal wind turbines. An Italian architect said he is poised to start construction on the new skyscraper that will be "the world's first building in motion," an 80-story tower with revolving floors that give it an ever-shifting shape. Solar photovoltaic ink on the roof of each floor will supply further renewable energy to this building, which is just one of a new generation of so-called 'eco skyscrapers' Photograph: Dynamic Architecture/AP

Okhta Tower, St Petersburg, new headquarters of Russian gas giant Gazprom, designed by RMJM Architects. The UK-based architects claim the building is super-insulated thanks to two glass 'skins' that create an atrium around the main body of the tower Photograph: RMJM

Ramsgate Street in Dalston, London. The shape of the building acts as an aerofoil, concentrating the most breeze to four wind turbine spirals Photograph: Waugh Thistleton Architects Ltd

The Co-operative Insurance Solar Tower in Manchester, which has 7,244 photovoltaic panels, designed to convert daylight into electricity Photograph: Yan Preston/Co-operative Financial Services

Gwanggyo self-sufficient organic city, Seoul, South Korea. Award-winning architects MVRDV's extraordinary design is a new self-sufficient city made up of organic 'hill' buildings to be completed in 2011. The cluster of green towers are designed to be home to 77,000 people and also house offices, shops and schools Photograph: Solent News/Rex Features

New York residents walk past the Hearst Tower, the first building in New York to get the Leadership in Energy and Environmental Design (LEED) gold rating, a US green building rating system, given to eco-friendly building in New York Photograph: Emmanuel Dunand/AFP/Getty

A model of US architect Frank Williams's Mercury City Tower on an office table in Moscow in 2007. It took a New York architect to design the first environmentally friendly building in the Russia, a country swamped with energy resources and the world's third-largest polluter Photograph: Denis Sinyakov/Reuters