I recently walked the parched earth of north-east Kenya and heard heartbreaking accounts of families slipping back into poverty. Across Africa, water shortages are expected to displace up to 700 million people this decade. The Horn of Africa is experiencing its worst drought in 40 years, with more than 50 million people suffering from hunger, unsure where their next meal is coming from.
While some parts of the continent are gripped by drought, places such as South Sudan and my homeland, Nigeria, are experiencing devastating flash floods that sweep away homes, businesses and livelihoods. And up to 116 million Africans will face severe risks from rising sea levels this decade.