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The global rise in food prices is mainly down to the fact they are commodities and traded for profit. Its not so much that there is a shortage now just that prices go up so people cant then afford the food, that seems to me where the crisis lies.
NO - Biofules are not even economically feasible - electric cars are much more efficient and less polluting.
Incidentally, on a test run from London to Vienna, the Toyota Prius - flagship of the Green Holier-than-thou Brigade - used more fuel than a 520d BMW.
Quote from: DoctorBeaver on 16/04/2008 22:01:38Incidentally, on a test run from London to Vienna, the Toyota Prius - flagship of the Green Holier-than-thou Brigade - used more fuel than a 520d BMW.There have been many such examples where the Prius has performed badly on long distance runs. The Prius excels in an urban environment, where a lot of time is spend standing at traffic lights, or slowing down for traffic; but at constant it will always be at a disadvantage.
And they're ugly.
"Brazil's President Luiz Inacio Lula da Silva has rejected allegations that biofuels are responsible for the recent rise in global food prices.President Lula said "allegations that global food prices were rising because of biofuels were baseless."
In one respect we should be happy about the rice shortage as rice growing is one of the biggest producers of methane gas in the atmosphere. Forget the farting cows!
Trouble is, we have no actual data on the bio-fuel effect, as I have said most of it is just anecdotal and not based on any factual scientific evidence.
I know rice feeds more people than cows and also that over 90% of the grain produced goes on feeding animals for meat. That however is a different matter.
just think of the 2CV6 for ugly)
When I lived in Uganda I could have made 3 times as much by changing from growing matoke (cooking bananas - a staple foodstuff) to coffee. I could have paid my workers more too. However, all the coffee would have been exported and there would have been over 1000 acres less food production for local consumption (not just by my workers). Considering I was getting approximately 35,000-40,000lbs of bananas per acre, that's a lot of food to lose. Get a few dozen producers doing that and suddenly you have a problem.
More than three quarters of all electricity in N.America is generated from COAL. Are you therefore advocating coal powered cars, which are made incredibly inefficient by the inherent loss in the electrical distribution system along with the loss of storing to and drawing from batteries? Also, what are you going to do with all those batteries?
Quote"Solar panels that can use UV radiation as well as visible light that is present even with a heavy cloud cover are quite sensible."Really? You do realize that this is supposed to be a SCIENCE forum, yes?....
"Solar panels that can use UV radiation as well as visible light that is present even with a heavy cloud cover are quite sensible."
QuoteGeothermal energy from ALL parts of the earth is already developed. WHY CAN'T PEOPLE READ THE DATA?I DO read the data. Most of the geothermal energy in use worldwide is captured via steam generators. This dumps massive amounts of water vapor into the atmosphere, which by all accounts is about 4 times worse than CO2 as a 'greenhouse' gas. You're better off with fossil fuels.
Geothermal energy from ALL parts of the earth is already developed. WHY CAN'T PEOPLE READ THE DATA?
Most of the geothermal energy in use worldwide is captured via steam generators. This dumps massive amounts of water vapor into the atmosphere,