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Damn NZ what happened, you used to be cool.
They too suffered from increased anger from the right wing, so when Jacinda resigned, they elected a right-wing government.
The only way we make air traffic sustainable is by only travelling by plane when absolutely necessary and by not ordering stuff to be delivered ASAP so it can be shipped by boat instead.
Four people in a Chevy Suburban with a V8 pollute less to travel the same distance than if they do it via the air. Air traffic pollution is very, very bad, especially since it's released at altitude, and yet air traffic keeps increasing, especially for leisure.
And before someone comments about the ultra rich and their private planes, their emissions is basically nothing compared to the rest of air traffic.
Air traffic altogether is only 2% of global emissions. We could focus efforts to reduce emissions elsewhere without the negative effects on logistics and people traveling. Even if you completely eliminated all air traffic tomorrow it would be insignificant compared to other sources. Not that I think it’s a bad idea to reduce emissions from air traffic, but it’s going to highly impact people’s lives for barely a dent in emissions.
2.5% of emissions but 4% of global warming impact due to where the emissions happen. That's 1/25th of the global warming.
You can always detail something and say it's only x percent. Every percent counts, and we have to start with the ones that are not vital. Planes for vacations or luxury mangoes are very far from being vital.
The way I see it, you’re taking away things people enjoy for a minuscule impact on climate. This will just piss people off for little benefit, and it’s not how you get people on board with the big changes we need to address the worsening climate. It’s like having to use shitty straws when industry is pumping gigatons of shit into the atmosphere. I believe the money pressure on airlines to use more efficient engines is actually doing a decent job at incentivizing efficiency in the air sector; it’s elsewhere that needs to be addressed harshly.
If externalities were actually enforced on the air sector, it would be completely replaced with high speed rail except for travel across the ocean, and even then shipping would become more prominent. The problem of giving free passes is you are artificially strangling the alternatives. It becomes much more cost effective to build high speed electric rail when your only option for jet fuel is biodiesel or paying the real costs of climate impact.
It is not taking away vacations or delicious fruits, there are many lower impact alternatives for vacations and food, you just have to get out of the habits and trends, there are great things to discovers everywhere.
Also, I don't advocate for prohibition but rather for reduction proportional to footprint. Your dream is to take the plane to go to another continent? Do it, but maybe once every 5 years instead of every year, and switch to train and discovery of your region with hiking for the other years.
Right, it's a lot better to give somebody a better alternative first if you want the public on board. Build up public transit, build up regional and high speed rail and leave planes for long distances that are unfortunately suited for trains and cars (e.g. international, cross-continental, etc.)
for a minuscule impact on climate.
who defines what is miniscule here? what if an oil baron deems 20% to be miniscule? do we all go swimming in their blackened beaches?
how is 2% miniscule? and who says that emission reduction exercises have to stop at 2%?
it's sometime very easy to minimise the seriousness of something with the clever use of generic statements. there are enough spin doctors already trying to pull the wool over our eyes--we don't need to help them by also shooting ourselves in the foot.
If we don't start taking away things that people enjoy then in a hundred years it won't be an issue anymore 👍
Almost every emissions issue is a small part of the whole
I believe the expectation is for that to change pretty rapidly.
Emissions from airlines is expected to continue growing and alternatives like biofuel/synfuel and expanded rail are too long term or not happening.
However the biggest emitters are being addressed. Scaling out renewable energy, ending coal, and scaling out EVs can significantly reduce the worst sources of carbon emissions (they’ll still be the worst but significantly less)
Then airlines become a contender and are no closer to a resolution
And before someone comments about the ultra rich and their private planes, their emissions is basically nothing compared to the rest of air traffic.
Yes but it's a hugely disproportionate amount for one person, how do people not get this?!
Using the same logic, i shouldn't do anything about climate change myself, because everything I can personally do is basically nothing.
I'm not saying it's not ridiculous for a single person, but even if they all started to take regular flights the issue would be pretty much the same, air travel in general is problematic, it's everyone's responsibility in this case. You see people complaining about emissions but they have travelled to 30 countries so far or they order shit from Amazon twice a week instead of buying locally or they decided to study 3000km from their home "to experience something new" but they come back any chance they get.
I really hate excusing billionaires in their private jets, but you could argue they do not have the money to make a difference in this case.
Technology improves efficiency as time goes on but the biggest change under airline control is switching over to biofuel so at least the carbon emissions are currently active carbon rather than adding carbon that had been sequestered for hundreds of millions of years. So biofuel exists and I believe has been approved, perhaps even internationally, however not much is made and it’s expensive. Private jets can’t spend enough to change that. We need commitments from major airlines to spend enough to invent biofuel scaling way up, and we almost certainly need government and international pressure or encouragement.
Of course that avoids the argument whether private jets are an excess the greater we can afford. And that avoids the argument that the rest of us need investments in rail so we have an alternative
2044: We cannot meet the 2050 climate target. There won't be enough jet fuel. We can't do much for the climate at this point anyway. So who wants to fly with us? We have air conditioned cabins. Live the cool life. Escape the heat!
2045: We are now in receivership as the impact of the Climate Wars and collapse of the global food supply means we can no longer fly. Wellington airport is 2 feet underwater anyway.
It is not the airliner which is the problem, it is the government. Compare it with the tobaco and alcohol industry: You can't expect them to protect the health of their customers and to reduce their profit voluntarily, If you want to reduce alcohol consumption, you just need to make the stuff more expensive with taxes etc. A bottle of spirit would cost the same as a bottle of cola if the government would not interfere, it is the task of the government to avoid this danger to society. The same with air travel: To make air travel less attractive is not the task of the airliner but a task of the government. At this moment, airliners are pampered, get tax free fuel, can expand at the cost of the neighborhood, etc. so what do you expect?
The air travel industry doesn't care much about fuel consumption. They still descent with flaps and spoilers out, instead of trading off altitude for speed slowly. They fly with speeds of 400+kts, but just like with cars, going slower saves fuel. And as long as the airliners demand fast airplanes, manufacturers keep designing them, despite the higher fuel costs compared to a slower plane. Again, making fuel much more expensive could cause the industry to rethink their strategy. There is a tipping point where customers accept a longer flight time for a substantial reduce in costs.
They still descent with flaps and spoilers out, instead of trading off altitude for speed slowly. They fly with speeds of 400+kts, but just like with cars, going slower saves fuel.
I agree with you wholeheartedly that aviation fuel subsidies must end, and train travel should be prioritized above all else.
That said, it's not true that going slower saves fuel, for multiple reasons.
- One is that the primary resistance planes encounter is air resistance, which is lowest in the highest parts of the atmosphere, because the air is thinner. But since planes use air pressure differences to stay up, thinner air means you have to go faster if you want to stay aloft.
- Even discounting that, going slower means a higher angle of attack for the plane, meaning the plane will pitch up more to maintain altitude. This actually increases drag, and that's true for everything from airliners to small propeller planes. Point is, the speed where fuel consumption is minimal for a given distance is not going to be near the lower end of the scale, more likely you'll find it in the upper third, above 400 knots for an airliner.
- The first point may be valid, but since going higher saves fuel, steep descents may actually also save fuel, as an idling engine will still consume a lot of fuel. In fact, I'd be willing to bet that going 400kts at altitude, then cutting the engines idle, and extending flaps and spoilers reduces flight time and thus fuel consumed compared to just cutting the engines and slowly descending. BTW you need flaps and spoilers to land, so it's more of a when rather than an if you'll open them.
- And finally, air pilots and airlines already optimise for fuel consumption, because that's in their interest as well. Fueling an airliner is hella expensive even with the massive subsidies. It should be more expensive, we agree on that, but slowing down airliners is just going to make fuel consumption and emissions even worse.
As an American: Government? That’s scary and against the constitution.
I think even in the US there is more tax on your car's fuel than on the airplane fuel. And I'm pretty sure there is some special tax on whiskey and other concentrated spirits, and tobacco, etc. Even in the US tax is used to direct social behavior.
I get how hard it is to cut down on airline emissions. But the strict requirements on budget has significantly improved that number over the past few decades. Aircraft engines today are much less polluting than they were 30 or 50 years ago. Perhaps the goals shouldn't be dropped so easily.
What scares me about this is how lightly climate change is taken. "Yeah, I don't think we can do it. So we're going to just stop trying". Do you even realize what sort of trouble the humanity and this planet is in? Especially for a country dominated by its coastline?
Profit this quarter matters more to these people than how many die in the next century.
They’d rather make a dollar today than save a life tomorrow.
If only they valued future lives at a dollar.
Billions are going to die and people are selling out for a few hundred bucks a year.
I've been assuming all climate goals are a joke. It's a way of saying "look we care!" without actually having to do anything
We're going to grow up our carbon emissions this year and the next one too, have no actual plans after that, but don't need to worry, by 2050 We're going to cut emissions by half.
Industry self-regulation, especially with regard to climate, is a joke. We either start fixing the system, or we'll burn.
NZ is a hard ask for this. They are an Archipelago and far from the rest of the world, of course their airlines can't live up to this. Maybe a small landlocked country with access to trains like Switzerland in Europe could do it, I would not have expected that of NZ.
The first of many, I presume. Any decision with a long term goal of >10y is pretty much null and void since it can be altered at any time.
Yep. Any promised future targets are just marketing hype.
Then: "Eco-friendly is really trending now, we'll base our image around that"
Now: "It's more profitable to drop the eco targets, so were dropping them"
It needs long term planning to make any change. So the key difference is between populist rhetoric and action, even if that action doesn't bare fruit immediately.
Right, and what I'm saying is there's basically zero incentive for corporations to ever take action, because SAYING you will be doing it has all the image, PR and revenue benefits, but without needing to even ACTUALLY do it. And then later you just quietly forget about it, like this.
The only way companies will ever take action is if governments legally mandate them to (and even then maybe not!)
How much better is biofuel than fossil CO2-wise, if you need to cut down forests for arable land?
A very good question.
It is a very common misconception that trees and plants just always absorb CO2. The Carbon (C) in CO2 does not just disappear when plants produce Oxygen (O2). Plants use it as material to grow themselves and their fruits. Once they are fully grown, they don't really absorb any more. So if you burn a tree in a fireplace and grow a new tree in its place, the new tree will eventually re-capture all the CO2 burning the wood released as it grows. This works even better with fast growing plants used for biofuel. The CO2 released by burning biofuel is re-captured when you grow more plants to make more biofuel.
So chopping down a forest to create fields is bad in the short term since it releases and does not recapture the CO2 from the trees, but is sustainable in the long term since you "recycle" the same Carbon.
Some quick searching gave me around 100 tons of carbon for 1 ha of forest and around 5 m^3 of biofuel per year for the same area of arable land. I.e. one liter of biofuel initially releases 20 kg of carbon or around 60 kg of CO2. So biofuel starts to be better for the CO2 levels after about 20 years?