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With the rising threat of climate change, green hydrogen is increasingly seen as the high-capacity energy storage and transport medium of the future. This creates an opportunity for low- and middle-income countries to leverage their high renewable energy potential to produce, use, and export low-cost green hydrogen, creating environmental and economic development benefits. While identifying ideal locations for green hydrogen production is critical for countries when defining their green hydrogen strategies, there has been a paucity of adequate geospatial planning approaches suitable to low- and middle-income countries. It is essential for these countries to identify green hydrogen production sites which match demand to expected use cases such that their strategies are economically sustainable. This paper therefore develops a novel geospatial cost modelling method to optimize the location of green hydrogen production across different use cases, with a focus on suitability to low- and middle-income countries. This method is applied in Kenya to investigate the potential hydrogen supply chain for three use cases: ammonia-based fertilizer, freight transport, and export. We find hydrogen production costs of €3.7–9.9/kg H 2 are currently achievable across Kenya, depending on the production location chosen. The cheapest production locations are identified to the south and south-east of Lake Turkana. We show that ammonia produced in Kenya can be cost-competitive given the current energy crisis and that Kenya could export hydrogen to Rotterdam with costs of €7/kg H 2 , undercutting current market prices regardless of the carrier medium. With expected techno-economic improvements, hydrogen production costs across Kenya could drop to €1.8–3.0/kg H 2 by 2030. [Display omitted] • We develop a novel GIS method to identify least-cost green hydrogen production locations. • This is applied in Kenya for ammonia, freight transport, and export use cases. • Hydrogen production costs of €3.7–9.9/kg H 2 are currently achievable in Kenya. • The cheapest production locations are to the south/south-east of Lake Turkana. • Kenya could export hydrogen and undercut current market prices with any carrier. [ABSTRACT FROM AUTHOR]

• Research maps global potential for nations to achieve coal phase-out goals. • Assessment framework measures country level factors affecting phase-out. • A final sample of 118 countries was analyzed based on the framework. • Dependences between CO 2 emissions, size of economy and coal imports are shown. • Enhanced country-level understanding of global transition landscape. The aim of this paper is to map the potential for nation states to adapt to global coal phase-out targets. An assessment framework using three core indicators: 'economic health', 'dependency on coal' and 'carbon contribution to climate change' is used to identify key constraints and contradictions. The indicators include 8 secondary measures. From a complete global list of 264 countries provided by World Bank, a final sample of 118 countries was selected, based on availability of data for the indicators. The sample was further refined using a two-step process. First, 118 countries were characterized according to their capacity to transition from coal (combining 'economic health' and 'dependency on coal') then divided into 4 groups of countries (A-D). Second, the groups were categorized by their level of carbon dioxide (CO 2) contribution. This step resulted in a further refinement of the categories showing the different constraints to nations achieving set transition goals. In designing and analyzing our framework, we considered the importance of interrelationships between the measures. 'Carbon contribution to climate change' and 'economic health', in particular, show strong links across the evaluated indicators. Our research demonstrates a direct correlation between CO 2 emissions and the size of national economies, as well as the important role of coal imports in transitioning market systems. Green growth is widely promoted as a lever for continued economic expansion. The new energy-efficient technologies and capital investment required for this environmentally sustainable economic growth, however, present significant challenges, particularly for nations that have historically contributed little to global CO 2 levels. This article provides a comprehensive multi-step analysis of country-level dependencies that will shape the decision-making pathways available to individual nation states. Recalcitrant nations frame this pathway as a trade-off between short-term economic viability and long-term, even deferrable, climate security issues. While policy platforms that defer climate action are becoming deeply unpopular in most democratic societies, there remains the fundamental question of how coal-dependent nations will stabilize their economies in the absence of coal. In a choice between imperfect alternatives, conservative politics appears to gravitate towards maintaining a cautious balance of market protectionism with the façade of supporting incremental investments in cleaner energy alternatives. [ABSTRACT FROM AUTHOR]