SIMON SANTOW: But when you see reports, your Eminence, that latest is a group of CSIRO scientists, where they are forecasting that if nothing is done about emissions by 2070, the temperature will rise by five degrees. You don't…
GEORGE PELL: I notice this is their latest change, I've studied this a little bit, and there's a whole history of differing estimates, 30 or 40 years ago, actually, some of the same scientists were warning us about the dangers of an ice age, so I take all these things with a grain of salt, they are matters for science and, as a layman, I study the scientific evidence rather than the press releases.
SIMON SANTOW: More than a dozen representatives from religions as diverse as evangelical Christianity to Hinduism and Buddhism don't mind using a press release to send a very different message about how seriously they take climate change.
They're demanding the Federal Government consider climate change a moral issue and show more leadership than they have up until now.
The Anglican Bishop of Canberra and Goulburn is George Browning.
GEORGE BROWNING: The Government's action is very inadequate and disappointing, but that's not surprising, because that's been their position over such a long period of time, they've been so reluctant even to admit that there is such a thing as climate change, let alone recognize that the human footprint has contributed towards it, they've only lately come that that position, and they are still only or setting aspirational targets, which is simply not good enough.
We actually do have to have real targets, and we have a real price on carbon.
SIMON SANTOW: George Pell says he supports investigating sources of 'clean' power, including wind as well as nuclear.
But he's adamant there's no need to rush into making significant changes.
GEORGE PELL: I think we need to go prudently and slowly, and not be driven by gusts of enthusiasm or particular political moves