This week on Dezeen, we reported on the sustainable aims of the Tokyo 2020 Olympic Games, which were questioned in a peer-reviewed study.
As the Tokyo 2020 Olympic Games kicks off we looked at the initiatives that are aiming to make the games sustainable. These include medals made from old phones, podiums made from recycled plastic and cardboard beds.
However, a report conducted by the University of Lausanne concluded that the games were the third-least sustainable Olympics since 1992.
"The majority of the measures that have been included in this particular Olympics, and the ones that were particularly mediatised, have a more or less superficial effect," David Gogishvili, who is co-author of the report, told Dezeen.
Dezeen's guide to the architecture of the Tokyo 2020 Olympic Games We also rounded up the most architecturally significant venues that will be hosting events during the games, including several buildings designed for the 1964 Olympics in the city.
The centrepiece of the games is the 68,000 capacity Japan National Stadium (picture top) designed by Japanese architect Kengo Kuma, which is one of the few venues built especially for the event.
Norway begins work on "absolutely necessary" project to bury up to 1.25 billion tonnes of CO2 under the North Sea
Our carbon revolution series continued this week with news that Norway has started work on a ?1.7 billion project to bury vast amounts of captured carbon under the North Sea.
Eventually...