|
Socyberty > Tags > petrol
|
 |
petrol |
|
|
 | | Biogas: An Historic Retrospective | | by Henrique, May 13, 2008 | | Biogas and renewable energies in general are very popular due to economic and environmental issues regarding conventional energy sources. In particular, we can state the possible shortage of world fuel reserves, and the negative effects that those conventional sources have on the ozone layer. | | Comments(3) Liked It: 2 |
|
 | | Rising Petrol Prices | | by Dee Huff, Jan 8, 2008 | | Petrol prices are rising all over the world, but at different rates for different people. Do you ever wonder why there is such a large discrepancy in prices? | | Comments(6) Liked It: 8 |
|
 | | Fuel Economy Since 1970s | | by aldrin rey, Aug 11, 2007 | | Nowadays there are concerns about global warming and wars supposedly only for fuel. What has the usage of it been like and its effects on the world economy? | | Comments(2) Liked It: 9 |
|
|
