This article provides a comprehensive review of the recent advancements in 3D/4D printed materials for fog collection and solar vapor generation devices. It covers various aspects such as material properties, device engineering, printing technologies, practical challenges, and future prospects in the field of water harvesting systems.

Atmospheric water harvesting is emerging as a promising Earth?friendly technology to ease water scarcity, and new porous materials like MOFs and COFs could dramatically cut its energy use by efficiently capturing humidity even in arid climates. This review highlights how smarter material design can accelerate energy?saving AWH solutions for sustainable, decentralized water access.

The chapter on district heating and cooling, which discusses the advantages of centralized heat distribution systems using various energy sources to support multiple users, aligns with UN SDG 7 (Affordable and Clean Energy) by promoting energy efficiency, reducing greenhouse gas emissions, and potentially lowering utility costs for users.

The transport of hydrogen and hydrogen carriers aligns with sustainability and the UN SDGs by reducing greenhouse gas emissions and promoting energy efficiency, contributing to goals related to clean energy and climate action. Additionally, it creates economic opportunities, fosters innovation, and enhances energy security, supporting goals related to economic growth and infrastructure development.

The Leaders Summit is the UN Global Compact’s dynamic day-long conference dedicated to providing the tools, network, knowledge, and inspiration needed to scale the impact of private sector contribu