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Latest revision as of 16:34, 4 November 2013
This is a property of type Text.
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Food availability measured in kcal per capita per day available for consumption, for initial situation (2010) and for the SSP scenarios (2100), globally and by region. (van Meijl et al., 2020b) +
A few key indicators show the trends for energy security, access, air pollution under a baseline scenario. +
In a baseline scenario, aquatic biodiversity is projected to decrease further. +
In the policy scenarios, emissions decrease strongly after 2020, while concentration levels only decrease or stabilise after 2050. Global mean temperature, due to inertia in the climate system, will not stabilise until the end of this century under the most ambitious climate policy scenario (2.6 W/m<sup>2</sup>). +
Cumulative terrestrial carbon flux of long-term climate scenarios (Müller et al., 2016) +
The national projection is from the National Decree No. 7390, and the WEO 2010 projection is from the World Energy Outlook (2010) of International Energy Agency. +
The effect of climate change on crop yields strongly depends on the effect of CO<sub>2</sub> fertilisation, also represented in LPJmL. Lines show means across several climate scenarios; adopted from Rosenzweig et al. (2014). +
The total global population is projected to peak and then decline in the coming century, except under the high-end assumptions (SSP3). By 2100, the population may range between the current and twice as many as in 2000 in the SSPs. The OECD Outlook assumes an intermediate population growth trajectory, close to the medium population SSP scenarios. +
Assessing how many of the 7 ecosystem services addressed in IMAGE (food, water, Carbon sequestration, erosion protection, pollination, pest control, flood protection, tourism) can be sufficiently supplied allows to identify hotspots of losses in ecosystem services. +
Future greenhouse gas emissions are mostly driven by an increase in energy use, while the relative contribution of land-use related emissions is projected to decrease. +
Increase in primary energy demand for electricity production is dominated by coal, despite a rapid growth of renewable energy. +
Between 2010 and 2050 energy demand for transport and industry, and for natural gas and electricity contribute most to the overall increase. +
Over time the share of most important energy producers for different forms of energy changes. This has implications for energy security. +
Inundation depth of 30-year flood scaled down to Bangladesh (left); The estimated annual damage due to floods (not only due to a 30-year event) is more concentrated when applying the land-use method compared to the population method. +
Areas of managed forest are projected to increase in the coming decades; improved forest management, especially forest plantations, could limit the area required for wood production. +
Under a baseline scenario, the global under-five mortality rates will only reach the level of the Millenium Development goals by 2050. +
The baseline scenario also shows a decline in population without access to safe drinking water, sanitation and modern energy. In all cases, the improvement is too slow compared to policy ambitions. +
Under baseline conditions, the risk of high and very high water-induced erosion increases strongly up until 2050. Under the sustainability scenario (PBL, 2012), most of the increase under the baseline scenario is avoided by the combined effect of less land conversion and less climatic change. +
Natural land conversion in selected SSP scenarios for the 2020-2100 period (van Vuuren et al., 2021) +
Despite a shift towards compound feed, global grass consumption in livestock systems is projected to increase (PBL, 2012). +