scholarly journals Phosphate mining and the circular economy: Morocco's OCP Group's approach to sustainable water use

Author(s):  
Zineb Benjelloun ◽  
Karim Saoud
Author(s):  
Abdul-Jalil Ibrahim ◽  
Nasim Shah Shirazi

Abstract Background Qatar’s per capita consumption of both energy and water is among the highest in the world. Documentation of methods to reduce energy and water use and its impact on the environment is crucial. A circular economy (CE) ensures that economic growth must not necessarily lead to more resource consumption. Materials and methods This study aims to discuss the CE approach with a focus on understanding the interdependencies between energy and water and their impact on the environment. The study explores the energy-water-environment nexus and how Qatar can leverage this to transition to a CE. The policy landscape and strategies related to energy and water use sectors are presented, addressing efficiencies and substitutes from a circular economic viewpoint. Results The findings show that electricity and mobility sectors(energy perspective of the CE) and agriculture and water supply system (water perspective of the CE) of the Qatari economy provide an opportunity for regeneration, virtualising, exchanging, optimising, sharing and closing loops to achieve CE growth. Conclusions The nexus between the mobility, electricity, agriculture and water supply system needs consideration for optimal policy outcome for the CE in Qatar. The study recommends a need to embark on public awareness on moving away from linear economic to the circular economic paradigm and developing a comprehensive policy on Qatar’s circular economic approach that consolidates the Qatar National Vision 2030 and the National Development Strategy 2018–2022 to provide policy clarity and communication towards CE.


2021 ◽  
Author(s):  
Zhipin Ai ◽  
Naota Hanasaki

<p>Bioenergy with carbon capture and storage (BECCS) plays a critical role in many stringent scenarios targeting the 2°C goal. Although irrigation is considered a promising way to enhance BECCS potential while reducing the land requirement, it is still unknown where and to what extent it can enhance the global BECCS potential in view of sustainable water use. Based on integrated hydrological simulations, we found that sustainable irrigation without intervention in water usage for other sectors and refrain from exploiting nonrenewable water sources enhanced BECCS potential by only 5–6% (much smaller than 60–71% for unlimited irrigation) above the rainfed potential by the end of this century. Nonetheless, it adds limited additional water withdrawal (166–298 km<sup>3</sup> yr<sup>-1</sup>, corresponding to only 4–7% of the current total withdrawal) compared to that with unlimited irrigation (1392–3929 km<sup>3</sup> yr<sup>-1</sup>, corresponding to 35–98% of the current total withdrawal).</p>


2019 ◽  
Vol 111 (4) ◽  
pp. 1946-1957
Author(s):  
Xingya Wang ◽  
Xiwei Liu ◽  
Qingzhao Wu ◽  
Pu Wang ◽  
Qingfeng Meng

2020 ◽  
Vol 9 ◽  
pp. 100055 ◽  
Author(s):  
D. Garrick ◽  
T. Iseman ◽  
G. Gilson ◽  
N. Brozovic ◽  
E. O'Donnell ◽  
...  

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