Dose of reality what’s needed
IT is about time all parliament a r i a n s t o o k a c o l d shower and restored a dose of reality to the interminable debates on ‘‘ carbon’’ taxes a n d e m i s s i o n s t r a d i n g schemes. Do they know what they are arguing about?
If you represent the composition of earth’s atmosphere by a one metre rule divided into one thousand millimetres, the present atmospheric carbon dioxide content ( about 400 parts per million) occupies 0.4 of one mill i m e t r e . A s s u m i n g t h e increase in atmospheric carbon dioxide concentration over the last century ( about 120ppm) is entirely due to human-caused emissions, on the one metre rule this would be represented by 0.12 millimetres. Australia’s contribution is about 1.4 per cent of this. ROBIN EVANS,