After a string of extreme weather disasters this year, scientists recently told us that they hadn't been able to accurately predict how quickly and severely these would happen.
Former Met Office chief scientist, Prof Dame Julia Slingo said the climate computer models currently used "are just not good enough. We need an international centre to deliver the quantum leap to climate models that capture the fundamental physics that drive extremes."
"Unless we do that, we'll continue to underestimate the intensity/frequency of extremes and the increasingly unprecedented nature of them.
Unless we do that, we'll continue to underestimate the intensity/frequency of extremes and the increasingly unprecedented nature of them."
Oxford Prof Tim Palmer said:
"It's impossible to say how much of an emergency we are in because we don't have the tools to answer the question.
It's impossible to say how much of an emergency we are in because we don't have the tools to answer the question."
Computers are fundamental to weather and climate change forecasting, and computing will underpin the report from the IPCC today.
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