The upcoming Paris climate conference (COP21) is opening the door to a new post-2020 climate regime in which China and other large emitters will have to provide strong evidence of their domestic efforts in addressing global warming in the next century.

With 266 billion barrels of proved oil reserves (16% of world total), Saudi Arabia holds the world's largest (conventional) crude oil reserves, was the largest exporter of total petroleum liquids in 2013, and the second largest petroleum liquids producer behind the United States[1]. 

Since 2010, the United States has been undergoing a second shale revolution with the very rapid development of Light Tight Oil (LTO) or shale oil, following the revolution in shale gas. This development has allowed the production of oil and liquids to increase, so that the US is the world’s largest producer today, ahead of Saudi Arabia and Russia.

The Sahel, often discussed on account of its problems and crises – in particular recently, in view of the crisis in Mali – is in actual fact experiencing a new positive economic era, like the rest of the African continent. For the five countries of the Sahel region we shall be examining – Mauritania, Senegal, Mali, Burkina Faso and Niger – this favourable evolution, although it varies from country to country, is based on booming extractive industries.