Dezeen Showroom:design brand Mater has launched Mask Stool, made using the spent grain from brewery Carlsberg's beer production, at Danish design festival 3 Days of Design. More about Mater designs stools made with leftover grain from beer and plastic insulin pens
Newtab-22 has used waste seashells salvaged from the seafood and aquaculture industries to develop a sustainable material that resembles concrete. More about Sea Stone is a concrete-like material made from shells
Scientists at the UK's University of Cambridge have developed a renewable energy device that mimics photosynthesis by making fuel from sunlight, carbon dioxide and water. More about Scientists develop synthetic leaf that turns sunlight into liquid fuel
Beer company BrewDog has gone carbon negative by switching to wind power for its breweries and bars, with plans to plant a forest's worth of trees. More about BrewDog goes carbon negative with wind-powered breweries
Dutch company GreenPee has installed eight hemp-filled sustainable urinals in Amsterdam to combat an increase in people urinating in the streets after the coronavirus lockdown ended. More about GreenPee installs hemp urinals in Amsterdam to stop "wild peeing"
Coral Carbonate is a research project that involves 3D printing with calcium carbonate to create sustainable underwater "houses" for coral reefs and marine life to grow. More about Coral skeletons crafted from 3D-printed calcium carbonate could restore damaged reefs
Microsoft has joined eight other global corporations to help businesses erase their carbon footprints as part of its commitment to becoming a carbon-negative business by 2030. More about Microsoft teams up with Nike, Mercedes-Benz and Unilever to launch Transform to Net Zero initiative
London designer Alexander Taylor is launching an online platform called ATID that will sell technical apparel made from biomaterials and leftover inventory. More about Alexander Taylor launches online clothing platform to tackle fashion industry waste
Zero is a concept for an incentive-based food-delivery system by PriestmanGoode that could encourage consumers to use and return bioplastic containers to takeaway restaurants. More about PriestmanGoode creates reusable fast food packaging from cocoa bean shells
Beta(MSK) by Petit Pli is a washable fabric face mask for the coronavirus pandemic made from recycled plastic bottles with pleats that adjust around the wearer's nose and chin. More about Petit Pli makes expandable and reusable face mask from recycled plastic bottles
Product design student Holly Grounds has replaced the many plastic sachets that accompany a pack of instant noodles with an edible, spice-infused wrapper that breaks down when cooked to season the broth. More about Holly Grounds develops dissolvable ramen packaging that turns into sauce
The latest edition of our Dezeen Weekly newsletter includes a coronavirus-inspired bring-your-own cutlery set designed in collaboration with Pharrell Williams. More about A coronavirus cutlery set by Pharrell Williams features in today's Dezeen Weekly newsletter
Hungarian design brand Sekhina has made a series of light switches and plug sockets from concrete as an aesthetically pleasing alternative to plastic. More about Sekhina designs minimal light switches and sockets from concrete
The Pebble is a bring-your-own cutlery set for the coronavirus pandemic made from recycled CDs by design studio Pentatonic in collaboration with singer Pharrell Williams' creative brand I Am Other. More about Pharrell Williams partners with Pentatonic to create coronavirus cutlery set
BioBombola is an educational grow-your-own edible algae set for children developed by architecture and research practice EcoLogicStudio during the coronavirus pandemic. More about EcoLogicStudio makes DIY algae kit for children learning at home in lockdown
Edible ramen packaging and biomaterials are among the five sustainable design projects from the graduate class of 2020 in this VDF school show, curated by New Designers. More about New Designers show sees graduates strive toward a circular economy
Reusable 3D-printed fracture casts and a compost caddy are among the products presented in this VDF school show, which features work produced as part of a course at Falmouth University that focuses specifically on sustainable design. More about Eleven projects from students of Falmouth University's Sustainable Product Design course
Designer Robert Johnson presents a panel discussion around his Fatconomy system, which explores using London's wastes a sustainable material, as part of VDF's collaboration with the Design Museum. More about Robert Johnson discusses how to use waste fat as a sustainable material in talk for VDF and Design Museum
Marjan van Aubel has designed a set of stained glass-style solar panels that will form part of the Dutch pavilion at Expo 2020 Dubai. More about Colourful translucent solar panels by Marjan van Aubel will top Dutch pavilion at Dubai Expo
The coronavirus pandemic is increasing demand for plastic and delaying the drive towards sustainable alternatives, say designers. More about Designers "deeply worried" as pandemic slows move away from single-use plastics