Activists and politicians have cautiously welcomed an unexpected US-China declaration that vowed to boost climate co-operation.

The EU and UN described the move as encouraging and an important step, but Greenpeace said both countries needed to take concrete action.

The US and China are the world's two biggest CO2 emitters.

They said they would work together to achieve the 1.5C temperature goal set out in the 2015 Paris Agreement.

Scientists say that limiting global temperature rises to 1.5C will help humanity avoid the worst climate impacts. This is compared with pre-industrial temperatures.

KAN's Mark Weiss spoke with Greenpeace Israel Program manager Sam Daniel and asked him if the agreement between the US and China means the  Glasgow conference can be considered  a success?