Singapore Airlines recycled more in-flight waste than earlier reported

Hong Kong - Singapore Airlines revised its rate of in-flight waste recycling upwards ahead of its annual general meeting on July 29, after receiving new data from its local catering company.

The national carrier said it recycled 11 per cent of waste generated in flight, or 393 tonnes, in the 2023/24 financial year, much higher than the 1.7 per cent it had stated last week. The upward revision came after queries from Bloomberg News about the airline’s recycling stance.

“After your queries, we conducted further checks with our Singapore in-flight caterer and received an updated figure on the amount of glass waste collected on board our aircraft in the 2023/24 financial year,” the airline said in a statement.

Recycling and a broader focus on the environment,

including sustainable aviation fuel

, has become a much bigger focus for airlines and investors as the aviation industry attempts to reach a challenging goal of net zero by 2050. To do that, carriers and planemakers will need to invest trillions of dollars, both in cleaner fuels and less-polluting aircraft.

While efforts like making planes lighter by removing heavier items such as bulky blankets and magazines and reducing single-use plastics are important, bigger gains will come from using sustainable aviation fuel and deploying more environmentally friendly jets.

SIA significantly understated how much glass waste it recycled – the amount was 368.1 tonnes instead of 29.6 tonnes – taking its fiscal year total to 393 tonnes. By comparison, the airline recycled about 15 per cent of its in-flight waste in the 2022/23 financial year.

It also revised its recycling volume in the 2019/20 financial year, raising its recycling to 670 tonnes from 388 tonnes once glass waste recycling data was added.

The carrier in its statement last week was initially responding to queries from shareholders about its recycling, and pointed out that restrictive legislation against international catering waste in many jurisdictions posed a “major obstacle”.

SIA’s recycling rate still lags behind that of some of its peers.

According to company filings, United Airlines Holdings’ 2023 recycling rate is about 16 per cent, Korean Air Lines comes in at around 68 per cent, and Qantas Airways at about 23 per cent.

SIA has come under fire for its sustainability efforts before – albeit in a different context.

In 2023, it ran a trial using paper boxes for economy-class food on medium- and long-haul flights, but did not end up implementing the change widely after

it was criticised on social media for appearing cheap.

However, paper boxes and bamboo cutlery are still used for short-haul flight catering in economy class. BLOOMBERG