[en] This Power Point document proposes figures and data about the current world energy consumption, the various energy sources, the share of primary energy consumption by different sectors, and the levels of energy reserves. It addresses the issue of global warming (evolution of temperature, regional anomalies, the challenge of limitation of temperature, the greenhouse gas emissions), the strategic role of electricity (energy mix, heat production with electricity), energy savings, electricity production (key data on solar, wind, solar and biomass energy, possibilities of carbon capture, nuclear energy, costs of these different energies)