Atmospheric water harvesting (AWH) is a promising strategy to extract potable water from atmospheric moisture. However, current AWH strategies encounter two significant dilemmas: (1) comparison between different AWH technologies lacks fairness; (2) the development direction of AWH is unclear. Thermodynamic evaluation with the minimum energy requirement analysis of four AWH methods is expected to achieve a fair comparison of the technologies and their global deployment. Besides the transition to a more sustainable and cost-efficient AWH implementation, we should reach a consensus to evaluate the potential of AWH technologies, evaluate the challenges and barriers remaining in current AWH technologies, and propose a realistic pathway to improve process performance.

中文翻译：

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大气水收集：关键指标和挑战

大气水收集 (AWH) 是一种很有前景的从大气水分中提取饮用水的策略。然而，当前的 AWH 策略面临两个重大困境：（1）不同 AWH 技术之间的比较缺乏公平性；(2)AWH发展方向不明。通过四种 AWH 方法的最低能量需求分析进行热力学评估，有望实现对这些技术及其全球部署的公平比较。除了向更具可持续性和成本效益的 AWH 实施过渡外，我们还应达成共识，评估 AWH 技术的潜力，评估当前 AWH 技术中存在的挑战和障碍，并提出提高工艺性能的现实途径。