This opinion article is the result of intensive discussions between a group of more than fifty internationally renowned researchers who are scientifically engaged in thermofluids and energy process engineering. With this article we express our plea: Let us consider all options and explore new ideas that will move us towards a climate-neutral energy system!

This book chapter advances SDGs 9 and 12 by reviewing and discussing the current status, ecological and socio-economic importance of seaweed farming.

Renewable energies have been discussed as the main efficient solution for solving many issues regarding climate change.

This article supports SDGs 7 and 9 by introducing interpretable artificial intelligence (AI) tools, especially proxy models based on artificial neural networks, efficient variable analysis and optimal value prediction of membrane electrode components in proton exchange membrane fuel cells, thereby improving their performance and reducing computational costs.

Scientists and governments of South Asian countries can work together more efficiently in the future, not just to react to the urban socio-economic and environmental problems of today, but work with superior foresight today to make strong decisions for tomorrow.

Heightened emphasis on transparency and accountability through corporate governance and disclosure has renewed the focus on the ‘triple bottom line’—environmental, social and economic impacts. Environmental, social and corporate governance (ESG) reporting generally measures the sustainability and ethical performance of a company. There is increasing interest in the ESG performance of companies by various stakeholders. A range of mechanisms exist to shape CSR and foment voluntary reporting by companies on their ESG performance. Adhering to one such framework heightens credibility, and a proactive approach to sustainability presents opportunities while ensuring a company’s preparedness to embrace evolving legal requirements.

UK mechanisms touching on sustainable development are generally based on, and have as their over-arching objective, some variation of the so-called “Brundtland definition”. These mechanisms also widely reference the three interconnected ‘pillars’ of sustainable development, also known as the ‘triple bottom line’ of sustainable development. The UK approach has a bearing on all SDGs and in particular, SDGs 9, 10 and 13.

The review examined the potential of renewable and non-renewable energy resources and the current state of exploitation in Kenya.

This chapter advances SDG 6 by discussing recent advancement in the usage of nanocellulose as an adsorbent for water and wastewater treatment and by highlighting current challenges and limitations related to nanocellulose derived material applications at an industrial scale.