ENGAGE Global Scenarios

<p>This data set includes global climate change mitigation scenarios as summarized by Riahi et al., 2021. The scenarios are developed as part of the <a href="http://www.engage-climate.org/">ENGAGE</a> project and were assessed in terms of the their investment implications (Bertram et al., 2021), their land-use dynamics (Hasegawa et al., 2021) as we all as with respect to their costs and benefits (Drouret et al., 2021). The scenarios include a current national policies scenario and an NDC scenario that depict relevant near-term GHG emission tends and targets. In the long-term, two types of CO₂ emission budgets are implemented, so called &ldquo;net-zero budgets&rdquo; and &ldquo;end-of-century&rdquo; budgets. The &ldquo;net-zero-budget&rdquo;<strong> </strong>scenarios assume climate policies that limit the remaining cumulative CO₂ emissions until net zero CO₂ emissions are reached. These scenarios limit the temperature overshoot and do not rely on global net-negative CO₂emissions to keep warming below the intended temperature limit. In contrast, the &ldquo;end-of-century budget&rdquo;<strong> </strong>scenarios assume long-term climate policies that limit cumulative CO₂ emissions over the full course of the 21^st century. Depending on the availability of carbon dioxide removal options, these scenarios may comprise high temperature overshoot and global net negative CO₂ emissions in the second half of the century. The near-term dimension of current national policies until 2020 or NDCs until 2030 is then combined with reaching the net-zero and full-century CO₂ emissions budgets. To cover a relevant range of temperature outcomes (which in addition to the budgets themselves also determined by mitigation of non-CO₂ GHG and aerosol emissions), the budgets are varied between 200 and 3000 GtCO₂ in steps of 50 &ndash; 500 GtCO₂.</p> <p>The data is available for download at the <a href="https://data.ece.iiasa.ac.at/engage/">ENGAGE Scenario Explorer</a>. The license permits use of the scenario ensemble for scientific research and science communication, but restricts redistribution of substantial parts of the data. Please refer to the FAQ and&nbsp;<a href="https://data.ece.iiasa.ac.at/engage/#/license">legal code</a>&nbsp;for more information.</p>