Solar Tree is a solar-powered street lighting systemdesigned by Ross Lovegrove for the Museum for Angewandte Kunst (MAK) in Vienna. The lighting has been engineered by Artemide in collaboration with Sharp Solar. More about Solar Tree by Ross Lovegrove
More from Foster: the architect has announced what is described as the world's "largest and most complete sustainable regional development". More about Cyrene Declaration by Foster + Partners
Mater is a new homewares brand with a commitment to sourcing products that are socially and environmentally sustainable. More about Mater ethical homeware brand
Grão is a project by Portuguese multidisciplinary studio Pedrita that takes surplus decorative tiles and combines them so that each one becomes a single "pixel" in large-scale murals. More about Grão by Pedrita
The Deptford Design Market Challenge is a project exploring how used objects can be "redesigned" to give them new life. More about Deptford Design Market Challenge
Greenpeace has commissioned interactive designer Jason Bruges to create an installation using new low-energy lights at the 100% Light show in London later this month. More about Greenpeace and Jason Bruges at 100% Light
Here are some new photos of the TransNeomatic bowls designed by the Campana Brothers for Artecnica's Design With Conscience initiative. More about TransNeomatic by Campana Brothers
New Designers 07: Northumbria University design graduate Christine Misiak takes old tea sets she finds at car boot sales and brings them back to life. More about Tea Sets by Christine Misiak
Designer Ryan Frank has designed a range of furniture made from wood salvaged from old office furniture. More about Strata by Ryan Frank
New Designers 07: The Ethical Kitchen is a project by Alexandra Sten Jørgensen, a recent graduate of the contemporary design course at Buckinghamshire Chilterns University in England. More about Ethical Kitchen by Alexandra Sten Jørgensen
New Designers 07: Light Bulb Packaging is a light designed by University of Brighton graduate Olivia Cheung that attempts to avoid waste by converting packaging into product. More about Light Bulb Packaging by Olivia Cheung
We're not making it up: Leeser Architecture of New York have won a competition to design the World Mammoth and Permafrost Museum in Yakutsk, Siberia. More about Mammoth and Permafrost Museum by Leeser Arch.
Nobody Chair by Danish design company Komplot is made out of recycled plastic water bottles using a manufacturing technique borrowed from the car industry. More about Nobody Chair by Komplot
Bar Code is a low-energy bar and night club in London that runs on "about the same amount of energy it takes to make a cup of tea", according to its designers, architects Woods Bagot. More about Bar Code by Woods Bagot
New Designers 07: here is our first post from the New Designers Part 2 graduate showcase, which opened last night at the Business Design Centre in Islington, London. Paper Mache Arm Chair (sic) is designed by Majid Asif of University College for the Creative Arts. The chair is made of 120 layers of newspaper built up over an inflatable mould. More about Papier-mache Armchair by Majid Asif
In her latest project, designer Karen Ryan takes unwanted porcelain vases and re-brands them by grinding off the surfaces but leaving her own "UNMADE 07" logo. More about UNMADE 07 by Karen Ryan
RCA summer show: here is the first of our posts from The Great Exhibition 2007 - the Royal College of Art Summer Show, which is on at the RCA in London and a temporary venue in Kensington Gardens. More about Domestic wind turbine by Ben Storan
London architects Waugh Thistleton have designed a timber residential tower they say will be the tallest wooden housing block in the world. More about Timber tower by Waugh Thistleton
Cape Town designer Heath Nash has sent us new photos of his lights, which are made from discarded items such as plastic bottles. More about New photos of work by Heath Nash
Architects Rogers Stirk Harbour and Partners have completed the first homes at Oxley Woods – a sustainable housing project near Milton Keynes in England. More about Oxley Woods by Rogers Stirk Harbour and Partners