From carbon neutral oil to planting billions of trees in the desert, greenwashing claims went into overdrive in 2021. Eco-Business highlights the times when businesses and governments were criticised for making sustainability claims of dubious credibility.

Buildings were back on the agenda at the recently-concluded COP26 summit. Developed nations say they will use their purchasing power to stoke demand for low-carbon building materials and accelerate the sector’s transition to net-zero.