Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 °C
Bibliographic Data
| ID | 15544467 |
|---|---|
| Authors | Fabian Stenzel (0000-0002-5109-0048, Humboldt-Universität zu Berlin, corresponding author), Dieter Gerten (0000-0002-6214-6991, Humboldt-Universität zu Berlin), Constanze Werner (0000-0003-1511-3086, Humboldt-Universität zu Berlin), Jonas Jägermeyr (0000-0002-8368-0018, Goddard Institute for Space Studies) |
| Year | 2019 |
| Volume | 14 |
| Issue | 8 |
| Pages | 084001-084001 |
| Publication date | 2019-06-20 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/ab2b4b |
| OpenAlex | W2950631924 |
| Language | EN |
| Citations received | 6 |
| References cited | 59 |
Limiting mean global warming to well below 2 °C will probably require substantial negative emissions (NEs) within the 21st century. To achieve these, bioenergy plantations with subsequent carbon capture and storage (BECCS) may have to be implemented at a large scale. Irrigation of these plantations might be necessary to increase the yield, which is likely to put further pressure on already stressed freshwater systems. Conversely, the potential of bioenergy plantations (BPs) dedicated to achieving NEs through CO 2 assimilation may be limited in regions with low freshwater availability. This paper provides a first-order quantification of the biophysical potentials of BECCS as a negative emission technology contribution to reaching the 1.5 °C warming target, as constrained by associated water availabilities and requirements. Using a global biosphere model, we analyze the availability of freshwater for irrigation of BPs designed to meet the projected NEs to fulfill the 1.5 °C target, spatially explicitly on areas not reserved for ecosystem conservation or agriculture. We take account of the simultaneous water demands for agriculture, industries, and households and also account for environmental flow requirements (EFRs) needed to safeguard aquatic ecosystems. Furthermore, we assess to what extent different forms of improved water management on the suggested BPs and on cropland may help to reduce the freshwater abstractions. Results indicate that global water withdrawals for irrigation of BPs range between ∼400 and ∼3000 km 3 yr −1 , depending on the scenario and the conversion efficiency of the carbon capture and storage process. Consideration of EFRs reduces the NE potential significantly, but can partly be compensated for by improved on-field water management
Agriculture · Agroforestry · Bio-energy with carbon capture and storage · Bioenergy · Biofuel · Climate change · Climate change mitigation · Ecosystem · Freshwater ecosystem · Global warming · Irrigation · Water resource management · Climate Change Policy and Economics · Environmental Science · Integrated Energy Systems Optimization · Water-Energy-Food Nexus Studies · Ecology
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| Unique citing works | 6 |
|---|---|
| Citations per year | 1,2 |
| Citation span | 2021 - 2024 (4) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 6 |