About the product
This synthesis focuses on estimates of biodiversity change as projected for the 21st century by models or extrapolations based on experiments and observed trends. The publication also pays particular attention to the interactions between biodiversity and ecosystem services and to critical “tipping points” that could lead to large, rapid and potentially irreversible changes. Comparisons between models are used to estimate the range projections and to identify sources of uncertainty. Experiments and observed trends are used to check the plausibility of these projections. In addition, this report identifies possible actions at the local, national and international levels that can be taken to conserve biodiversity.