French automobile brand Renault are showing a range of electric concept cars at the Internationale Automobil-Ausstellung (Frankfurt Motor Show) in Germany this week. More »

French designer Mathieu Lehanneur and Harvard professor David Edwards have launched a filtration system which uses living plants to purify the air indoors. More »

Tokyo design brand Rezon have designed a cotton bag for people to wear over their heads when they see people exhibiting ungreen behaviour. More »

Dutch designer Enina Waelstham of Mormels Design has created a collection of lamps made by covering objects in recycled paper. More »

Danish architects Bjarke Ingels Group have won an international competition to design a low-energy tower for the Shenzhen Energy Company in Shenzhen, China. More »

Here is the first of three proposals by Dutch designers Tjep. for self-sufficient farms that provide inhabitants with everything they require, including energy, heat, oxygen, food and waste management. Update: this project is included in Dezeen Book of Ideas, which is on sale now for £12. More »

London designer Gitta Gschwendtner has completed a wall that incorporates 1,000 nest boxes for birds and bats in Cardiff Bay, UK. More »

Artist Sighn has made fifty sets of fluorescent-painted cutouts saying "IT'S OK" as part of his limited edition of one million. More »

San Francisco designer Yves Behar of fuseproject has designed a range of sustainable underwear for online clothing retailer PACT. More »

Oregon designers John Arndt and Wonhee Jeong of Studio Gorm have designed a kitchen where waste products are used to grow plants. More »

Graduate designer Daniel Rawlings has created a series of vases by heat-shrinking plastic tubing around broken crockery. More »

Polish designer Katarzyna Okinczyc and photographer Remigiusz Truchanowicz have designed the 60Bag, a carrier-bag that degrades in 60 days. More »

Car brand Chrysler have re-designed the GEM Peapod, a battery-powered electric car. More »

Architects Anarchitects have been commissioned to redesign the studio of fashion designer Vivienne Westwood in Battersea, London. More »