Governments agree next decade critical to prevent climate change

Governments have agreed that the next decade will be critical in preventing irreversible climate change.

That's a key outcome of the last IPCC report until 2030 - one which condensed decades of climate science to inform policy around the globe.

University of Canterbury political science professor and IPCC report writer Bronwyn Hayward.

She's spent an exhausting week in Switzerland working on the final product.

She spoke to Kim Hill.