Founder Jeremy Tamanini is a thought leader and consultant in the global sustainability space with over a decade of experience leading projects in collaboration with public, private sector, and intergovernmental partners. He started this work by creating the Global Green Economy Index™ (GGEI), the first and leading measure of country-level green performance. The GGEI has been used by numerous partners to create bespoke green performance frameworks, as well as generating over 250,000 downloads, 100+ media & academic citations, and usage in 100+ governments, institutions, and private firms. 

In 2025, he is leading research into applied AI for sustainability. This work focuses on identifying key "AI touchpoints" across enterprises including scope 1, 2 and 3 emissions, supply chains, data analytics, carbon reporting and forward looking R&D. In parallel to this he is a member of the P7100 working group at the IEEE, working towards formulating one of the first global standards covering the environmental impacts of AI systems. Visit the Dual Citizen website to learn more.

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