Global heating study rules out best and worst case scenarios

Uncertainty over climate outcomes reduced but experts warn urgent reduction in CO2 levels is essential

Doomsayers and hopemongers alike may need to revise their climate predictions after a study that almost rules out the most optimistic forecasts for global heating while downplaying the likelihood of worst-case scenarios.

The international team of scientists involved in the research say they have narrowed the range of probable climate outcomes, which reduces the uncertainty that has long plagued public debate about this field.