One million of the planet's eight million species are threatened with extinction by humans, scientists warned Monday in what is described as the most comprehensive assessment of global nature loss ever.

Their landmark report paints a bleak picture of a planet ravaged by an ever-growing human population, whose insatiable consumption is destroying the natural world.

The global rate of species extinction "is already tens to hundreds of times higher than it has been, on average, over the last 10 million years," according to the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), a UN committee, whose report was written by 145 experts from 50 countries.

Shrinking habitat, exploitation of natural resources, climate change and pollution are the main drivers of species loss and are threatening more than 40% of amphibians, 33% of coral reefs and over a third of all marine mammals with extinction, the IPBES report said.

The report comes six months after the UN Intergovernmental Panel on Climate Change (IPCC)warned that the world has less than 12 years to avoid catastrophic levels of global warming.

In the same way that the IPCC report put the climate crisis on the political agenda, the authors of the IPBES report hope that it will thrust nature loss into the global spotlight.

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