The Courier-Mail
By: Graham Readfearn
'We may lose some big ice sheets, which can raise sea levels by maybe 20m to 30m'
Tens of thousands of people will converge around one number in countries across the world today to call for action on climate change.
Some of Australia's leading climate change scientists held a discreet briefing for politicians this week and it is almost unthinkable that the number would not have been raised there as well.