There is today a wide scientific consensus on the existence of global warming, driven by the increased Greenhouse Gas (GHG) emissions (due to historic human activities) and concentration in the atmosphere. The latest IPCC 1.5°C Special report, released a couple of weeks ago in October 2018, made a clear statement that the world need to cut carbons emission as fast as possible and on the largest possible scale in the next 12 years before the global limit of 1.5°C is reached and climate change irreversible. Indeed, reaching the 1.5°C will significantly worsen the risks of sea level rise, drought, floods, change rainfall patterns, extreme heat and displacement (it is estimated that up to 700 million will move due to climate change worldwide) and poverty for hundreds of millions of people.
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