Kathmandu, Nepal - There is no single country that can legitimately be called the world’s “best” at environmental conservation. Different international assessments measure different dimensions-from air quality and climate policy to biodiversity, protected areas and the preservation of natural ecosystems.
The 2026 Environmental Performance Index (EPI), produced by Yale and Columbia universities, ranks Estonia first globally for overall environmental performance, with a score of 74.79. Estonia also ranks first in the EPI’s climate-change mitigation category, reflecting strong progress on greenhouse-gas emissions and climate policy.
But environmental leadership extends far beyond one index.
Cambodia has been highlighted in recent international assessments for the strength of its natural environment and extensive protected landscapes, while Seychelles and Slovenia are also frequently recognized for their natural assets and conservation-oriented policies. Such rankings should be interpreted according to the methodology used rather than treated as an absolute global league table.
Several countries have become conservation models because of specific policies.
Costa Rica is internationally renowned for reversing historic deforestation trends, expanding protected areas and developing payments for ecosystem services that reward landowners for maintaining forests. Namibia is widely recognized for placing conservation within its constitutional framework and for its community-based conservancy model. Palau has become famous for linking tourism with environmental responsibility through its Palau Pledge.
Bhutan: A Himalayan Conservation Champion
For Bhutan, environmental protection is not simply a government programme-it is embedded in the country's constitutional and development philosophy.
Bhutan's Constitution requires the country to maintain at least 60 percent forest cover for all time. Government sources report forest cover of more than 70 percent, while more than half of the country's territory is under protected-area management, including biological corridors.
Environmental conservation is also one of the four pillars of Gross National Happiness. Bhutan has maintained an ambitious commitment to remain carbon neutral and has positioned environmental stewardship at the heart of national development.
Nepal: Conservation in the Roof of the World
Nepal deserves a prominent place in the global conservation story. Although it may not always appear at the top of broad environmental-performance rankings, its achievements in biodiversity and wildlife conservation are significant.
Nepal has established an extensive protected-area network covering roughly 23.4 percent of the country's territory, stretching from the tropical Terai to the high Himalayas. Its conservation system protects some of the world's most iconic species, including the Bengal tiger, greater one-horned rhinoceros and snow leopard.
Nepal's conservation experience is particularly notable because it increasingly combines protected areas with community forestry, buffer-zone management, wildlife monitoring and community participation. Its conservation story demonstrates that protecting nature in a densely populated developing country requires people and ecosystems to be considered together.
The 2026 EPI's biodiversity and habitat indicator places Bhutan 16th globally, demonstrating the country's strong performance in this particular dimension.
Ultimately, the world's conservation leaders are not necessarily the same countries that top a single environmental ranking. Estonia demonstrates strong overall environmental performance; Bhutan demonstrates constitutional and landscape-level conservation; Nepal demonstrates large-scale biodiversity and community-based conservation; Costa Rica demonstrates forest restoration; Namibia demonstrates community conservation; and Palau demonstrates responsible tourism.
The lesson for the world is clear: there is no single model for protecting nature. The most successful countries turn conservation into policy, law, community participation and everyday economic practice.
For countries such as Nepal and Bhutan, the Himalayas are not merely national treasures-they are critical ecosystems whose forests, rivers, glaciers and biodiversity provide benefits far beyond their borders.
Conservation is therefore not a competition for the title of “greenest country.” It is a shared responsibility to protect the natural systems on which every society depends.
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