. The Cost of Policy Inaction: The case of not meeting the 2010 biodiversity target. Historic and future development of global biodiversity Mean species abundance (%). 3 Tropical grassland and savannah | Temperate grassland and steppe ^ Tropical ram forest | Tropical dry forest ~2 Mediterranean forest, Potential 1700 1750 1800 1850 1900 1950 2000 2050 baseline woodland and shrub Temperate broadleaved and mixed (orest | Temperate coniferous forest J) Boreal forest J Desert | Tundra â Polar Figure 1 Historic and future development of global biodiversity 2. Overview of the methodology Before goin
. The Cost of Policy Inaction: The case of not meeting the 2010 biodiversity target. Historic and future development of global biodiversity Mean species abundance (%). 3 Tropical grassland and savannah | Temperate grassland and steppe ^ Tropical ram forest | Tropical dry forest ~2 Mediterranean forest, Potential 1700 1750 1800 1850 1900 1950 2000 2050 baseline woodland and shrub Temperate broadleaved and mixed (orest | Temperate coniferous forest J) Boreal forest J Desert | Tundra â Polar Figure 1 Historic and future development of global biodiversity 2. Overview of the methodology Before going into the details of the analysis, it is useful to have an overview of the methodology. Biodiversity loss implies loss of ecosystem goods and services to the human economy, in other words direct and indirect benefits to human well being. These losses of contributions to the economy have for a large part been the consequence of purposefully converting natural systems to food, timber of fuel producing mono- species ecosystems thereby, to some extent unintentionally, causing the loss of other ecosystem sendees, such as climate regulation, water purification and outdoor recreation. This analysis tries to quantify and then value those changes. The key parts of the COPI analysis are: 1. Develop projections of changes in ecosystem services based on changes in land use, biodiversity and quality factors over the period to 2050. 2. Development of a database of values of ecosystem services that can be applied to the changes in ecosystem services. 3. Apply the values to the changes in ecosystem services using a spreadsheet model that allows the combination of the ecosystem service values and the land use changes, and the quality factors based on a measure of biodiversity of the land use types. 4. Complementary analysis of benefits and losses across other biomes than the land-biomes in the GLOBIO model. 16 Alterra-rapport 1718. Please note that these images are extracted from scanned page
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