Every 10 seconds we lose a child to hunger. This is more than HIV/AIDS, malaria and tuberculosis combined.

If any good comes out of the current famine in the Horn of Africa - amidst the pictures of mothers carrying dying babies at their shrivelled breasts and hollow-eyed children with swollen bellies and matchstick limbs - it will be galvanising the world on the need to ensure access to nutritious food for the world's most vulnerable people.

This isn't one of those rare diseases that we don't have the solution for. We know how to fix hunger.

With climate change and health crises rightfully receiving international attention, the time has come to focus on hunger as a top priority. WHO regards hunger and malnutrition as the gravest threat to public health, and climate change threatens to further destabilise already fragile food-production systems.

One cup of food a day changes Fabian's life completely. But this morning, about a billion people on Earth - or one out of every seven - woke up and didn't even know how to fill this cup. One out of every seven people.

Every 10 seconds we lose a child to hunger. This is more than HIV/AIDS, malaria and tuberculosis combined.

Seize the moment – don’t wait for anyone to give you permission.