This week on Dezeen, two of the original signatories to the Architects Declare climate change network – Foster + Partners and Zaha Hadid Architects – withdrew from the group, triggering a feud over whether designing airports is compatible with decarbonisation goals.

UK studio Foster + Partners made the decision to leave the group following a disagreement over its work in the aviation sector.

"Foster + Partners has withdrawn from Architects Declare because, since our founding in 1967, we have pioneered a green agenda and believe that aviation, like any other sector, needs the most sustainable infrastructure to fulfil its purpose," said studio founder Norman Foster in a statement issued to Dezeen.

A day after a day after Foster + Partners left the group, fellow founding signatory Zaha Hadid Architects announced its decision to withdraw.

In its statement, the studio attacked the climate change group's leadership saying that their decisions were "setting the profession up for failure".

As the world gears up to the festive season, Sam Jacob Studio unveiled its Christmas Tree in London's King's Cross district.

Named Electric Nemeton, the 11-metre-tall tree is designed to be a cross between "a fairy-tale forest and modern architecture".

In design news, self-professed "mother of silicone" Beate Karlsson created a series of wearable objects including shoes that look like claws and padded shorts that imitate Kim Kardashian's bum.

The "fictional fashion" pieces were designed to "belong in a future imaginary world where there are less norm-driven preconceptions" the designer told Dezeen.

This week we also continued our series focusing on providing visual inspiration for the home with a roundup of ten serene, architect-designed bedrooms.

We also began our review of the year's most interesting stories by taking a look at the top 10 staircases and top 10 hotels of 2020.

Popular projects on Dezeen this week include a house in Peru with reddish stone and concrete walls designed by Barclay & Crousse, a London apartment with pink and pistachio-green storage walls and a teal coloured beach retreat overlooking Tunquén beach in Chile.

This week on Dezeen is our regular roundup of the week's top news stories. Subscribe to our newsletters to be sure you don't miss anything.