The report by the United Nations (UN) Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) included 145 scientists from 50 countries, and is considered the most extensive report on environmental losses.
One million species of animals and plants are threatened with extinction, according to the report. Scientists highlight five main causes of major changes in nature in recent decades: loss of natural habitat; exploitation of natural resources; climate change; pollution; and invasive species.

