Buildings are the most important source of greenhouse gas emissions. But architects and engineers around the world are developing radical solutions to cut emissions and employ sustainable materials.
 | Picture Gallery (click to start)Visitors in the German Reichstag in Berlin. The building covers 80 percent of its energy demands with renewable energy (Photo: Reuters) |
The picture gallery presents green architecture solutions worldwide: Sustainable skyscrapers, new materials, improved city planning, renewable energy and green style.
