Bangalore-based start-up String Bio uses methane as its raw material. This methane is either extracted from natural gas or captured as biogas emitted by food waste. String Bio adds bacteria to the methane in a fermenting vessel where the microbes convert the gas into a protein-rich biomass. This end product can be turned into food for animals and plants.

Climate Action and Waste Reduction
A quarter of all data centres are now in water-stressed areas. Let’s not make it a third