Empowering the Green Leaders of Tomorrow

Join the International Environmental Olympiad and compete with brilliant minds worldwide to solve the most pressing environmental challenges of our time.

Register for IEnvO 2025 Learn More
50+
Countries
10K+
Students
5
Learning Areas

Core Learning Areas

Comprehensive environmental education across five critical domains

Atmosphere

Climate change, air quality, and atmospheric science fundamentals

Water

Water conservation, quality management, and aquatic ecosystems

Land

Soil science, land use planning, and terrestrial conservation

Biodiversity

Species conservation, ecosystem protection, and biological diversity

Human Activity

Sustainable development, environmental policy, and green technology

Competition Structure

1

Global Grand Test

150-minute individual assessment with 300 multiple-choice questions

2

International Final

Team-based material analysis and case presentation challenges

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