The Nile – the world’s longest river – runs through 

The cycle of droughts and floods is likely to continue; we need to prepare for it and make it work for those at risk

“The effects of climate change are unfolding before our eyes,” says Janse Rabie, Agri SA policy head for natural resources. “Unpredictability in weather patterns and the associated impacts makes planning considerably more difficult and heighten the risk for farming in South Africa.”

“The number of farms in South Africa has declined by more than two-thirds compared to the early 1990s,” says a 2018 GRCF-AFRICAP report.

Ce livre décrit les processus hydrologiques et leurs dynamiques passées et actuelles au gré de l’évolution des agrosystèmes, de leur emprise spatiale, de leur capacité d’adaptation au changement global, et aux changements climatiques. Il se fonde sur l’indicateur que représente la capacité de rétention en eau des sols, qui conditionne la bonne alimentation en eau et en nutriments des systèmes racinaires, tant des cultures que de la végétation naturelle. C’est aussi cette rétention en eau qui permet de limiter le ruissellement et les inondations en aval.

THE SECRETARY-GENERAL
REMARKS AT ONE PLANET SUMMIT Paris, 12 December 2017
[as delivered]
President Macron, Excellencies, World Bank President Jim Kim, Ladies and gentlemen,
We are not yet winning the war on climate change — the defining challenge of our times.
The Paris Agreement lays the basis for ambitious action.
But we know that current commitments will not get us there.
Every day, in every region, the front pages are dominated by weather-related disasters – storms, floods, droughts, fires.