User contributions for Sjhutman
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- 13:56, 3 May 2008 diff hist +730 The damaging effect of electronics on the environment
- 13:29, 3 May 2008 diff hist +7 Energy current
- 13:25, 3 May 2008 diff hist +32 The increasing scarcity of resources
- 13:20, 3 May 2008 diff hist −4 The increasing scarcity of resources
- 13:20, 3 May 2008 diff hist +209 Energy
- 13:16, 3 May 2008 diff hist +121 Energy
- 13:15, 3 May 2008 diff hist −4 Energy
- 13:15, 3 May 2008 diff hist +3 Energy
- 13:14, 3 May 2008 diff hist +815 Energy
- 13:02, 3 May 2008 diff hist +207 The increasing scarcity of resources
- 12:59, 3 May 2008 diff hist +10 Water current
- 12:59, 3 May 2008 diff hist +21 Water
- 12:59, 3 May 2008 diff hist +50 Water
- 12:28, 3 May 2008 diff hist +1,360 N Energy New page: Levels of primary energy sources are the reserves in the ground. Flows are production. The most important part of primary energy sources are the carbon based fossil energy sources. Oil, co...
- 12:26, 3 May 2008 diff hist +56 The increasing scarcity of resources
- 12:08, 3 May 2008 diff hist +1,812 N Petroleum New page: Petroleum is used mostly, by volume, for producing fuel oil and gasoline (petrol), both important "primary energy" sources. 84% by volume of the hydrocarbons present in petroleum is conver...
- 12:07, 3 May 2008 diff hist +8 The increasing scarcity of resources
- 12:07, 3 May 2008 diff hist +71 The increasing scarcity of resources
- 11:44, 3 May 2008 diff hist +114 Water
- 11:42, 3 May 2008 diff hist +8 The increasing scarcity of resources