Will flying ever be sustainable? | BBC News

Dunno, ask the billionaires who want to ban people flying in their hundreds, while they sit alone on a jet.

It's cheaper to fly to Spain, than to get the train to Newquay...so wether its sustainable or not, people will use it

Whats the carbon footprint of RAF, USAF and all the other airforces? What about private jets etc?

Am I the only one that would dearly love to see big spacious airships reintroduced, where one can mover around, instead of having to stay seated in a tiny seat. I'd happily have the journey take 2 or 3 times as long, rather than be sat between two obese people, overflowing onto my seat, for several hours. Airships could be both sustainable and comfortable.

As the world is today. Nothing is sustainable.

Nothing wrong to dream bigger & faster, when engineering is all about turning a theory into reality. But if you really want to travel one country to the next, invest in trains. Planes will always use more energy than trains.

Solar electric blimps

in the meantime it is a highly taxable activity

Hydrogen is a terrible fuel from an energy-density and price perspective. To be fair, this was kind of acknowledged in the video but nobody should be holding their breath right now while waiting for this to happen. Good old fossil fuel will be the airline industry's only option for at least another decade or two.

No ! Energy wise far to costly. Rail is still quite efficient.

I think it will take a generation or more before we see commercial hydrogen aeroplanes & I cannot see it will work for Emirates alike

The 70,000 who flew to COP28 in Dubai say, “Yes”, but only for them.

Nah..just use fusion innit!

Honeslty I don’t want to hear about normal flights not being sustainable until private jets are banned 🤦‍♀️

Flying never harms the environment when Greta Thunberg or Emma Thompson does it.

Typical having someone complaining about the emissions involved in constructing the technology, without actually challenging that and asking how many emissions are used to construct conventional aircraft. Also emissions to construct the technology will be coming down. Electric mining trucks are starting to be rolled out, the transportation of minerals that have just been mined would normally be trains which can be electrified as well as ships and the shipping industry has it's own plans for going zero carbon. Then there are smelting works to process the metal and hydrogen power smelting works are coming on line with one currently already fully operational in Sweden, and then there other transportation emissions where trucks are already going electric as well as factories relying on the power grid which is going more and more green as the years go on. So the emissions for constructing the aircraft will be involving less and less CO2 as different parts of different sectors have their own advancements, until in the distant future constructing the aircraft will have zero CO2 emissions.

Of course it will. If humanity lives long enough, everything will be sustainable. Air flight will be easy in terms of many others..

I don't know much but wording nucléaire be and option like submarines ? Elimited power for ever. Don't even know if it something posible 😂

How many airmiles has Attenborough and his 50 strong team of monkey photographers got under their belt?

No. Next question.