Reports and Indices

Global Environmental Think Tank Development Report 2025

November 9 , 2026 12 hrs 0 min 13 0

The Global Environmental Think Tank Development Report 2025 was released at the International Symposium of Environmental Think Tanks in Hangzhou, China.
The report maps 886 environmental think tanks across 97 countries and examines their research capacity and contribution to environmental governance.
Of these, 499 think tanks are in 26 developed countries, while 387 are in 71 developing countries.
New Delhi-based Centre for Science and Environment (CSE) ranks among the world's top 100 environmental think tanks.
CSE is also among the top 50 in three categories: environmental pollution, biodiversity and ecosystems, and sustainable development.
The report highlights differences in funding, institutional strength and research capabilities, and the need for international cooperation and shared research.