Piaras Mac Éinrí: Climate challenges could create enormous social upheaval

President Michael D Higgins in Senegal for the Africa Food Summit Conference where he addressed climate refugees and migration.

Ireland, a country with a long history of emigration, located on the edge of a continent, has always looked outwards. 

That has sometimes given the country a role and influence disproportionate to its size, notably in the north/south global context.