Professor Peadar Kirby:

Absolutely. If we are saying that we must get down to 90% by 2050, then by 2030 we must be down to 40%. There was some ambition at the time of the Kyoto meeting to make the target for Kyoto 30% rather than 20%. Had we done that we might be closer to where we are going. All of this emphasises the need for much more immediate targets.