To: Mr. Palau who wrote (25136 ) 1/22/2008 4:38:13 PM From: TimF Respond to of 71588 Most of those are fairly generic ideas. What I mean by that is they are so vague that positions on the opposite side of many controversies could be said to be inspired by such ideas. None of them are highly specific, but I'll address one that at least isn't very vague (how you intend to get there is vague but the idea itself isn't) - "Ending dependence on foreign oil" - That one is really tough, and probably something that would do more harm than good. Most of the foreign oil comes from Canada or Mexico so the benefit of ending imports might not be as good as you think.. Also the Middle East producers have the lowest cost and the highest reserves, while a lot of American oil is pretty high cost. That means if you reduce oil use by the amount we currently import from the Middle East (or even the amount of our total imports) you don't end imports from the Middle East, instead you get less production in the US and imports almost as high as before. Also even if you really could shift to more expensive American oil, our supplies would run down faster and later on, when oil is even more expensive, we'd have to import a larger percentage of the oil we use. To end oil imports you pretty much have to almost eliminate oil use. Eliminating oil use isn't in the cards any time soon. Oil is our biggest source of energy for transportation, and one of the biggest sources of other purposes, for a reason. Any other source is going to cost more, and may have other negative impacts. For example see - Rapeseed biofuel ‘produces more greenhouse gas than oil or petrol’ 'Fertilising' oceans with iron may combat climate change | Climate change may help rainforests A renewable energy source designed to reduce greenhouse gas emissions is contributing more to global warming than fossil fuels, a study suggests. Measurements of emissions from the burning of biofuels derived from rapeseed and maize have been found to produce more greenhouse gas emissions than they save. Other biofuels, especially those likely to see greater use over the next decade, performed better than fossil fuels but the study raises serious questions about some of the most commonly produced varieties. Rapeseed and maize biodiesels were calculated to produce up to 70 per cent and 50 per cent more greenhouse gases respectively than fossil fuels. The concerns were raised over the levels of emissions of nitrous oxide, which is 296 times more powerful as a greenhouse gas than carbon dioxide. Scientists found that the use of biofuels released twice as much as nitrous oxide as previously realised. The research team found that 3 to 5 per cent of the nitrogen in fertiliser was converted and emitted. In contrast, the figure used by the International Panel on Climate Change, which assesses the extent and impact of man-made global warming, was 2 per cent. The findings illustrated the importance, the researchers said, of ensuring that measures designed to reduce greenhouse-gas emissions are assessed thoroughly before being hailed as a solution. “One wants rational decisions rather than simply jumping on the bandwagon because superficially something appears to reduce emissions,” said Keith Smith, a professor at the University of Edinburgh and one of the researchers...timesonline.co.uk