The body of new research in response to the IPCC’s call for papers for its 1.5°C special report shows that even an additional half a degree of global warming would bring a wealth of negative impacts on most natural and human systems around the world. It would also constitute a severe hurdle to poverty reduction.
On a brighter note, the research strongly suggests that some of the dire consequences of future global warming can be avoided by restricting the global mean temperature rise to 1.5ºC (above pre-industrial levels).
Although it requires drastic societal transformations, the 1.5˚C objective is still geophysically feasible: whether it will be achieved depends on the concerted action of the global community to overcome political obstacles and curtail the future rates of emissions. However, the scientific evidence shows that, without a doubt, the benefits are worth this effort.
In this blog, we give an overview of the most important of the recent 1.5˚C studies on climate impacts and extreme events. Much of it will be synthesised in the IPCC special report, due out in October, which will be a key document for setting the course of climate policy at a global level.
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