Quality recycling
Growing environmental concern has fuelled consumer enthusiasm for products containing recycled plastics. But where to find enough recycled plastic, and of sufficient quality? XiaoZhi Lim reports
Bridging the cracks
Novel sensor and material technologies promise speedier identification of bridges most at risk of failure or collapse – and could save lives, Jon Evans reports
Meatless meat
Animal welfare and sustainability concerns, along with the need for a protein rich diet, are driving a surge in demand for alternative proteins – from plants, fungi and insects, Maria Burke reports
Bee healthy
Propolis produced by bees is touted as a medicinal treatment for conditions from diabetes to mouth ulcers. But is the hype justified? Jasmin Fox-Skelly reports
Best footprint first
Chemical producers are keen to show customers their product footprints. But just how credible are these measurements, Eric Johnson reports