While the IPCC had a pivotal role in generating a shared understanding of the nature and risks of climate change, it now needs to be more focused on responses to climate change. The costs, benefits and risks of political decisions need more systematic analysis and evaluation.

The suggested outline for the IPCC Special Report on the 1.5°C goal, which is currently under discussion at the IPCC’s plenary in Bangkok, includes a separate chapter that deals with the matter of how we can address these challenges. This would mean that finally the dissonance between ambition and action would be tackled.

The science so far suggests enormous challenges: the remaining net amount of CO2 that can still be released to the atmosphere in order to keep temperature rise below 1.5°C is at best 200 Gigatons of CO2. With yearly emissions at around 40 Gt CO2, this leaves no more than five years at current rates of emissions. After this point, every single ton of carbon released by households, factories or cars would need to be taken back out of the atmosphere.

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So. Now we know something has to be done. But we have absolutely no idea how to do it.

We're so screwed.

https://www.theguardian.com/science/political-science/2016/oct/17/the-gap-between-ambition-and-action-in-tackling-global-warming