Fossil energy: can we really do without it?- Geo.fr

Fossil fuels such as coal, gas and oil, come from the methanization of plants and living beings who have been dead and buried in the ground for several million years.Thus, coal is the result of the methanization of plants such as ferns while oil comes in particular from plankton buried for several million years.The fact that these energies require several million years of training means at the same time that they are limited and non -renewable.Starting with oil which should become a rare resource in the coming years.

Why do we call on so-called unconventional fossil fuels?

The stocks of conventional fossil fuels (gas, petroleum and coal) not being inexhaustible, many countries are looking for new energy sources that require particular extraction, this is called unconventional fossil fuels.The best known being shale gas and shale oil.

Thus, if it is enough to pump conventional oil in porous rocks, unconventional oil is much more difficult to extract: one must be fractured from mother rock, dig to very large depths under the sea under the sea under the sea under the sea under the sea under the sea under the sea under...

Roasted Pumpkin Seeds.1 in 10 popped.How to make more pop?Roast the Unpopped?Wet Them First?Steam in the Oven?Ideas?
— Judith Bush Sat Dec 05 23:16:48 +0000 2009

What are the possible alternative energy sources today?

Wind turbines, solar, hydroelectricity or geothermal energy are the main tracks currently studied to cope with an upcoming shortage of fossil fuels.However, they do not yet have the ability to replace all fossil fuels which represent 80% of energy consumption worldwide.The priority is therefore today to review our lifestyles in order to save energy before considering a viable alternative as explained by the engineer Maxence Cordiez.

➤ To find out more, discover our special file devoted to the challenges of the energy transition.