29 avril 2008
2
29
/04
/avril
/2008
02:38
'(A note. Hydrogen is NOT an alternative energy source. It is an alternative intermediate form for transporting energy in, e.g. cars. Why? Because you need to use energy – usually electricity – to make the hydrogen in the first place. This means that hydrogen, though clean burning at point of end use, is really just another way of using electricity which is produced by all of the same old sources we have had for a long time – coal, oil, nuclear, hydro, etc. A truly alternative source would be one which did not rely on these fuels to produce the electricity, e.g. wind or solar)' |
Erreur de frappe?: 'Predictions that the Iraq war would be a “catwalk,” offered up by some supporters of that conflict, are just the latest in a long string of foolish predictions...' |