If food waste were a country, it would be the third largest source of GHG emissions on the planet, of which 61% comes from households. Meanwhile, according to FAO, more than 800 million people are undernourished while 2 billion are micronutrient deficient.

In the lead up to the International Day of Awareness of Food Loss and Waste on 29 September, check out these 12 apps that help prevent household food waste and protect the planet.