This raport predicts that in 2040 the world temperature will rise by 1.5'C or in the other scenario by 2'C. But these are not the worst case scenarios. The scenario 'business as usual' says that we are on our way to rise the world temperature by 3-6'C and this would be catastrophic to us.

See the source article by following the link below:
This raport predicts that in 2040 the world temperature will rise by 1.5'C or in the other scenario by 2'C. But these are not the worst case scenarios. The scenario 'business as usual' says that we are on our way to rise the world temperature by 3-6'C and this would be catastrophic to us.