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Does Air Travel Cause Global Warming?

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  • Oct 26th, 2019 10:21 pm
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May 10, 2005
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MexiCanuck wrote: Does air travel cause global warming?

No.

Does it contribute to global warming?

Yes.

https://davidsuzuki.org/what-you-can-do/air-travel-climate-change/
Self righteous David Suzuki is losing appeal for many and his attitude is not helping his credibility.
http://www.quebecoislibre.org/001014-11.htm Just one example but there are many.
Oh and I realize he as God like standing and followers in BC :).
I am not a climate denier and fully realize and believe our climate is changing. The reasons why are what is debatable in my opinion.
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MexiCanuck wrote: What terrible sacrifices for the most privileged generation in the history of homo sapiens to make in order to give future generations a planet that is merely livable.

Addressing climate change will be complex. It will involve reducing or eliminating unsustainable activities, modifying activities that are damaging but otherwise desirable, and developing technologies to permit the continuation of activities that are damaging but necessary.
Yes, terrible terrible sacrifices.

bjl
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Jul 30, 2015
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RSole wrote: You're missing my point. It's not just the carbon dioxide emitted by the planes, it's the artificial clouds they are generating in the stratosphere. If planes flew at 10,000 feet altitude it would only be the CO2 that they produce that adds to the problem. The cloud generation may be far worse.
I think you’re missing the whole point here. Flying at 10 000ft... High mountains ? Excessive fuel burn ? Low TAS ? Range for ground based navaids and VHF coverage, icing and bad weather conditions, etc.
Last edited by Latitude57 on Oct 9th, 2019 11:01 am, edited 1 time in total.
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RSole wrote: Suzuki, Gore and other climate change hypocrites never mention airplanes as possible contributors to climate change because they would never take the train or a bus to their many profitable talk destinations.

Clouds (including condensation trails from aircraft) reflect heat radiated from the Earth back to the ground (also, water vapor is one of the most potent greenhouse gases), that is why clear sky nights are so much cooler than cloudy nights.
After the attacks on 9/11 planes were grounded in the USA for three days and the skies were unusually clear. Banning air travel may well get the biggest bang-for-your-buck, as far as slowing or reversing climate change, but don't expect the elite to jump on this bandwagon.

"In 2004, NASA scientist Patrick Minnis wrote that “increased cirrus coverage, attributable to air traffic, could account for nearly all of the warming observed over the United States for nearly 20 years starting in 1975.”
https://globalnews.ca/news/2934513/empt ... xperiment/
Face With Tears Of Joy Those theories...
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Sep 23, 2007
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Farting contributes to global warming. What's the point?

A key issue is that dumb people try to seek single factor explanations. Politicians and scientists need to simplify matters so that simpletons can grasp the complex issues. If you cite the thousands of factors that are either proven or suspected to cause global warming, then the topic suddenly seems too complex and nobody cares. People just shoot out comments like "our winter is still cold! what global warming?". It's pretty much the same reason why some people thought the earth is flat, because they see the land as visually flat.

If only everyone can be more sophisticated, society as a whole can hopefully make more informed decisions. I think even for a lot of activists, they are acting from their heart, not their brains. The vast majority of the issue lies with the major polluters like China. Small steps help and we should do what we can, but a lot of activists simply aren't basing their actions and direction on logical steps.
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Air travel contributes to global warming, but surface vehicles and facilities contribute far more.

What's likely to happen given the volatility of fuel prices, continued advancement of technology, and increased attention to environmentalism is more non-jet air travel. Safe propeller craft using electricity or cleaner engines and traveling at slower speeds would keep fares low while meeting the world's increased air travel needs and keeping noise down. We already use turbopprop aircraft to cover much of Canada because of our smaller economy, and once those are retrofitted to cleaner engines and new designs come out that use pure or hybrid electric engines the cost of running them will drop considerably, as will the environmental impact.
Could HAVE, not could OF. What does 'could of' even mean?
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Messerschmitt wrote: Personal cars pollute million times over airplanes. The distance with how many passengers they carry per trip makes it THE most fuel efficient. Exception is the shinkansen or ICE trains, but no such option for intercontinental travel
True, cars consume more fuel globally than airplanes, but the issue is the clouds that airplanes produce at high altitude, their condensation trails. Similarly, ozone is good at high altitudes to block UV radiation, but bad at ground level.
[OP]
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BananaHunter wrote: Farting contributes to global warming. What's the point?
Yes, especially the millions of cow farts. Methane is a more potent greenhouse gas and I've read that they're trying to genetically modify cows to produce less flatulence.

We just don't hear much about planes being a major contributor to warming either because they aren't or it's verboten to discuss the possibility of restricting air travel.
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pfbmgd wrote: Over the millions of years that earth changed climate . Humans were the main culprit . Pay your tax and fix it .
Humans were not around millions of years. And Humans only contributed to climate change since the Industrial Revolution which only started only a few hundred years ago.
Have a nice day!


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Messerschmitt wrote: Personal cars pollute million times over airplanes. The distance with how many passengers they carry per trip makes it THE most fuel efficient. Exception is the shinkansen or ICE trains, but no such option for intercontinental travel
You sure about that? Assuming people carpooled more often, a car would be much lower per passenger. A family driving across the provinces produces far less emissions per passenger than that same family on a full airplane. It's just on aggregate, given the daily use of cars, it's higher. When the economy is good and roaring, that airline emissions is at a much higher level (so more variable). Given how well the economy is doing, it's on the higher side. And given that you can't even put any more airplanes in the skies in many parts of the world due to the congestion given such high, record global demand.

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BananaHunter wrote: Farting contributes to global warming. What's the point?
Therefore, it's likely that vegetarians (who get their protein from beans) are screwing up the environment.

bjl
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at1212b wrote: You sure about that? Assuming people carpooled more often, a car would be much lower per passenger. A family driving across the provinces produces far less emissions per passenger than that same family on a full airplane. It's just on aggregate, given the daily use of cars, it's higher. When the economy is good and roaring, that airline emissions is at a much higher level (so more variable). Given how well the economy is doing, it's on the higher side. And given that you can't even put any more airplanes in the skies in many parts of the world due to the congestion given such high, record global demand.
Cars are lower per passenger, but given that there are roughly 1,282,000,000 ground passenger vehicles world and only about 23,600 passenger aircraft the contributions from air travel are just a drop in the bucket compared to the total. Add in the fact that most of those ground vehicles are in various states of disrepair, have little to no emissions control equipment, and burn fuels like diesel that release far more fine particulates than others and it's clear that car travel is responsible for most of the world's vehicle pollution.
Could HAVE, not could OF. What does 'could of' even mean?
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LonesomeDove wrote: Humans were not around millions of years. And Humans only contributed to climate change since the Industrial Revolution which only started only a few hundred years ago.

We were not around and yet the climate changed without our help . I`m sure we have small effect on the climate . But I feel plastic is the real enemy of the earth .

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