Paris climate summit: Carbon pledges to fall short of warming goal, Stern warns

By Peter Hannam
Updated May 5 2015 - 4:15pm, first published May 4 2015 - 6:25pm
Nicholas Stern says climate change costs aren't properly captured by  models.
Nicholas Stern says climate change costs aren't properly captured by models.

This year's Paris climate summit will leave the world on course for dangerous climate change unless nations offer much deeper carbon emissions cuts than already pledged or signalled, according to researchers including the UK's Lord Nicholas Stern.