E3G – Third Generation Environmentalism is an independent climate change think tank operating to accelerate the global transition to a climate-neutral economy. Founded in 2004, E3G is globally recognised for its innovative policy research, political analysis, and strategic engagement with policymakers, businesses, and civil society. Their work focuses on building cross-sectoral coalitions, providing robust analysis, and advocating for ambitious climate action across Europe and internationally, with key areas including climate diplomacy, energy systems, sustainable finance, and climate resilience.
Serves as a primary hub for E3G's global operations, including research leadership, policy development, strategic communications, and coordination of international advocacy efforts.
Located within The Foundry, a building dedicated to organizations working on social justice and human rights, fostering a collaborative and mission-driven environment. The space is designed to be sustainable and accessible.
E3G fosters a highly collaborative, intellectually stimulating, and mission-driven work culture. Employees are passionate about climate change and work in a fast-paced environment engaging with complex policy challenges and diverse stakeholders.
The London HQ is strategically positioned in a global financial and political centre, enabling E3G to effectively engage with UK government, international institutions, businesses, and NGOs based in the city.
E3G operates globally through its strategically located offices in London, Brussels, Berlin, and Washington D.C. These hubs allow E3G to engage with key decision-makers and influence climate policy at national, regional (EU), and international levels. Functions supported globally include high-level policy research, political analysis, strategic advice to governments and institutions, international climate diplomacy support (e.g., G7/G20, UNFCCC), sustainable finance advocacy, and fostering public and private sector coalitions for climate action.
4th Floor, The Foundry, 17 Oval Way
London
England
United Kingdom
Address: The EGG Brussels, Rue Bara 175, 1070 Brussels
To influence EU climate policy, strengthen Europe's role in international climate negotiations, and foster collaboration among EU member states and stakeholders on climate initiatives.
Address: Neue Mälzerei, Friedenstrasse 91, 10249 Berlin
To advance Germany's national climate agenda, contribute to EU policy from a German perspective, and leverage Germany's influence in global climate diplomacy.
Address: 1100 13th Street NW, Suite 850, Washington D.C. 20005
To influence US climate policy, strengthen transatlantic dialogue on climate change, and support US leadership in global climate efforts.
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As of April 2025, E3G' leadership includes:
E3G has been backed by several prominent investors over the years, including:
E3G has maintained stability in its core leadership while strategically appointing key roles. A significant development was Shane Tomlinson's formal appointment as CEO in September 2023, working alongside Founding Director Nick Mabey to co-lead the organization, reflecting a planned leadership evolution.
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E3G typically utilizes a standard professional email format for its staff, most commonly combining the first name and last name separated by a dot, followed by the @e3g.org domain. This is a common pattern for think tanks and non-profit organizations.
firstname.lastname@e3g.org
Format
nick.mabey@e3g.org
Example
85%
Success rate
E3G Website • May 29, 2024
E3G highlights that the G7 has a critical opportunity to champion a transformative clean energy offer for developing countries. This involves shifting from a debt-driven model to one focused on investment, supporting sustainable development and energy access....more
E3G Website • April 30, 2024
E3G commented on the G7 Climate, Energy and Environment Ministers' meeting, noting some progress on phasing out coal and tackling methane but emphasizing the need for stronger commitments on gas phase-out, fossil fuel subsidies, and increased finance for developing countries....more
E3G Website • February 14, 2024
E3G welcomed the European Parliament's adoption of the Nature Restoration Law, calling it a crucial step for EU's biodiversity, climate action, and long-term resilience, despite attempts to weaken the legislation....more
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