There’s no doubt that this dense, science-heavy, 33-page summary is the most significant warning about the impact of climate change in 20 years.
“It is seriously alarming,” Amjad Abdulla, a lead author on one of the chapters from the Maldives, told BBC News.
“The small islands will be the first, but nobody can escape; it is quite clear.”
But while the warnings about the dangers of letting temperatures go beyond 1.5C are dire, the report says, surprisingly perhaps, that the world can keep below the limit.
“We face a really large challenge but it is not impossible to limit warming to 1.5 degrees,” said Dr Natalie Mahowald, an IPCC author