World Energy Resources
Remaining reserves of fossil fuel are estimated as:
| Fuel | Proven energy reserves in ZJ (end of 2009) |
|---|---|
| Coal | 19.8 |
| Oil | 8.1 |
| Gas | 8.1 |
These are the proven energy reserves; real reserves may be up to a factor 4 larger. Significant uncertainty exists for these numbers. The estimation of the remaining fossil fuels on the planet depends on a detailed understanding of the Earth's crust. This understanding is still less than perfect. While modern drilling technology makes it possible to drill wells in up to 3 km of water to verify the exact composition of the geology, one half of the ocean is deeper than 3 km, leaving about a third of the planet beyond the reach of detailed analysis.
However one should keep in mind that these quantitative measures of the amount of proven reserves of the fossil fuels do not take into account several factors critical to the cost of extracting them from the ground and critical to the price of the energy extracted from the fossil fuels. These factors include the accessibility of fossil deposits, the level of sulfur and other pollutants in the oil and the coal, transportation costs, risky locations, etc. As said before easy fossils have been extracted long ago. The ones left in the ground are dirty and expensive to extract.
Read more about World Energy Resources: Renewable Resources
Famous quotes containing the words world, energy and/or resources:
“When as that Rubie, which you weare,
Sunk from the tip of your soft eare,
Will last to be a precious Stone,
When all your world of Beautie ‘s gone.”
—Robert Herrick (1591–1674)
“But often the presence of mind and energy of a person remote from the spotlight decide the course of history for centuries to come.”
—Stefan Zweig (18811942)
“Everywhere we are told that our human resources are all to be used, that our civilization itself means the uses of everything it has—the inventions, the histories, every scrap of fact. But there is one kind of knowledge—infinitely precious, time- resistant more than monuments, here to be passed between the generations in any way it may be: never to be used. And that is poetry.”
—Muriel Rukeyser (1913–1980)