Agricultural waste that is usually burned or left to rot could play a far bigger role in tackling climate change if it were instead used in long-lasting building materials, according to new research from the University of East London.
The study shows that fibrous residues from crops such as wheat, rice and maize — produced in billions of tonnes every year worldwide — could act as a powerful carbon sink when diverted into construction products like insulation, boards and panels. Rather than releasing carbon back into the atmosphere within months, these materials can store it for decades.