Environment & Sustainability Guide · Reunion

Environment & Sustainability Guide in Reunion

Air quality, green spaces, and environmental policies

Réunion, a French overseas territory in the Indian Ocean, faces significant climate vulnerabilities including rising sea levels, increased cyclone intensity, and coral bleaching. The island has made progress in renewable energy adoption and environmental protection, though data on specific air quality and recycling metrics remains limited in public databases.

Air Quality Index

0510
Good
7.2/10
Stable trend

Réunion's air quality is generally good due to trade winds and limited industrial activity, though volcanic emissions from Piton de la Fournaise and occasional Saharan dust events can temporarily degrade air quality. Urban areas experience typical tropical island air quality patterns with seasonal variations.

Water Quality

0510
Good
7.5/10

Réunion maintains good drinking water quality standards aligned with French and EU regulations. Water supply comes from mountain springs and groundwater sources. Primary concerns include coral reef degradation from warming waters and coastal pollution affecting marine ecosystems.

Drinking water meets EU standards (Directive 98/83/EC) with regular monitoring by local authorities. Supply is reliable in urban areas, though some rural regions face seasonal variations.

Recycling System

Réunion has implemented waste management and recycling infrastructure as part of French environmental regulations. The island operates several recycling centers and has programs for plastic, paper, glass, and organic waste. However, comprehensive recycling rate data is not consistently published in international databases.

plasticpaperglassorganic wastemetals

Green Spaces

Réunion is home to diverse ecosystems including tropical forests, volcanic landscapes, and coral reefs. The island has established protected areas and national park status for significant portions of its territory. Approximately 35% of the island maintains forest coverage, with efforts to protect endemic species and biodiversity hotspots.

Forest Coverage: 35.0%
National Parks: 1
Réunion National Park (Parc National de la Réunion) encompasses approximately 105,000 hectares and protects diverse ecosystems from sea level to mountain peaks. Additional marine protected areas safeguard coral reefs and coastal biodiversity.

Environmental Policies

As a French overseas territory, Réunion adheres to EU environmental directives and French national environmental law. The island has committed to renewable energy expansion, biodiversity protection, and climate adaptation strategies. Key policies address coastal protection, forest conservation, and sustainable tourism.

Key Policies:
  • EU Environmental Directives (Habitats, Birds, Water Framework Directives)
  • French Climate Law (Loi Énergie-Climat 2019)
  • Réunion Renewable Energy Transition Plan
  • Marine Protected Areas Network
  • Coastal Zone Management Regulations
Renewable Energy: Réunion aims to achieve approximately 50% renewable energy by 2030, with expansion of solar, wind, and hydroelectric capacity. Current renewable energy represents approximately 45% of electricity generation.

Natural Disaster Risk

HIGH

Réunion faces significant natural disaster risks including tropical cyclones, flooding, landslides, and volcanic activity. The island's location in the Indian Ocean cyclone belt and proximity to active volcano Piton de la Fournaise create ongoing hazards. Climate change is intensifying cyclone severity and rainfall extremes.

tropical cyclonesfloodinglandslidesvolcanic eruptionsstorm surgeflash floods
Climate Change Impacts: Réunion is experiencing accelerating climate change impacts: sea levels are rising at approximately 3-4 mm per year (faster than global average of 3.3 mm/year), threatening coastal infrastructure and freshwater aquifers. Ocean temperatures have increased by approximately 0.8-1.0°C since 1980, causing coral bleaching events (major bleaching occurred in 2016, 2020, and 2022). Cyclone intensity is increasing with warmer ocean temperatures; recent storms like Cyclone Calvinia (2023) and Cyclone Freddy (2023) demonstrated intensified rainfall and wind patterns. Precipitation patterns are becoming more erratic with increased frequency of extreme rainfall events (>100mm in 24 hours). Marine biodiversity is declining due to warming waters, ocean acidification, and coral reef degradation affecting fish populations and food security.

Sustainability Initiatives

Renewable Energy Expansion

Réunion is transitioning to renewable energy with solar farms, wind installations, and hydroelectric facilities. The island aims to reach 50% renewable electricity by 2030 and 100% by 2050. Recent projects include large-scale photovoltaic installations and battery storage systems to manage intermittency.

Marine Conservation and Coral Reef Protection

Establishment of marine protected areas, coral restoration programs, and fishing regulations to protect degraded reefs. Initiatives include monitoring programs for sea temperature and coral bleaching, community engagement in reef restoration, and sustainable tourism practices.

Circular Economy and Waste Reduction

Implementation of EU circular economy directives including extended producer responsibility, waste reduction targets, and promotion of sustainable consumption. Programs focus on reducing single-use plastics, increasing recycling rates, and developing local composting infrastructure.

Forest and Biodiversity Conservation

Protection of endemic species and tropical forest ecosystems through the Réunion National Park and regional conservation programs. Initiatives include invasive species management, reforestation projects, and habitat restoration for endangered endemic species.

Wildlife & Nature

Réunion Giant TortoiseCritically Endangered
Réunion KestrelVulnerable
Réunion FodyEndangered
Green Sea TurtleEndangered
Hawksbill Sea TurtleCritically Endangered
Réunion Cuckoo-shrikeVulnerable