WATCH: The world's most eco-friendly airports

Africa’s first solar powered airport officially opened in February 2016, as the Garden Route's George Airport made the switch to off-the-grid power.

With a massive uptake in air travel and an ever-growing aviation sector, sustainable airports are becoming increasingly crucial in securing the safety of ecosystems. 

READ: Do you plastic-wrap your luggage at the airport? This airport just made it 'mandatory' 

Here are the world's most eco-friendly airports: 

Sweden: Stockholm Arlanda International Airport 

It was the first European airport to achieve carbon neutrality in 2009. The airport’s goal is to have a zero-carbon footprint by 2020.

Galapagos Islands: Seymour Airport

Known for continually fighting any harmful impact of tourism on the environment, the Galapagos Islands Ecological Airport is 100% green and runs on solar and wind power. Its infrastructure was created using over 80% recycled materials. 

Singapore: Changi Airport

The new Terminal 4 houses over 20000 plant species and is a hub of eco-friendliness. It features energy-efficient motion sensors, lighting, runs on solar and has water-efficient fittings.

US: Denver International Airport

Home to the largest solar power farm at a commercial airport in the US, it generates enough electricity to power 2500 homes. 

WATCH: Nonchalant mule trots through airport departure lounge

India: Indira Gandhi International Airport

India’s largest international airport saves on energy by using battery-powered vehicles to transfer passengers between terminals and to baggage claim. 

Switzerland: Zurich International Airport

Extremely eco-conscious, the airport uses rainwater in the toilets and utilise underground energy piles in order to heat and cool its terminals.

Norway: Oslo Airport

Snow is gathered from the runways and stored in an onsite depot; it is then used in summer as a coolant.

Sources: Airport Industry Review and Aeronautics Online.

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