Before Covid, flying caused around 1 billion tonnes of CO2* per year.
That means if aviation were a country, it would be one of the largest single emitters, just behind Japan and ahead of countries like Germany and South Korea.
*Flights have additional climate impacts.
May 11 • 8 tweets • 9 min read
We need new narratives to reduce aviation and lay the tracks for a fair planet!
Biofuels are *theoretically* a feasible alternative to fossil jet fuel. But: they have countless negative side effects and their quantity will remain limited. #greenwashing
A thread on their problems and limits. 🔽🧵
Problem 1: biofuel use is severely constrained by the sustainability and availability of biomass
Nov 16, 2021 • 20 tweets • 6 min read
#Hydrogen is touted by some as THE great climate remedy.
Parts of the #aviation industry are also telling us that we will soon be flying on hydrogen.
Why this is not true - a thread. 🔽 🧵
The basics: in order to use hydrogen as a power source for aircraft instead of kerosene it could either be burned in a jet engine or used to feed a fuel cell to generate electricity to power a propeller.
Nov 4, 2021 • 6 tweets • 3 min read
What the aviation industry tells you: electric planes will play a big role in decarbonisation.
What they don't tell you: due to heavy batteries, electric planes are viable only for short distances - which won't change for decades to come.
Learn more: stay-grounded.org/wp-content/upl…
Efficiency has a problem - it's called #ReboundEffect. History shows us that "efficiency improvements" have always been accompanied by increased emissions! This is because efficiency also reduces the cost of flying and contributes to air traffic growth = emissions growth.
Nov 4, 2021 • 8 tweets • 4 min read
"Small cuts in air traffic would level off global heating caused by flying"
Good article by @katerav about an important paper by @milankloewer et al. - but with a few blind spots.
Let's explain what's missing here. Thread 🔽🧵 theguardian.com/world/2021/nov…
First of all: the article talks about a 2.5% reduction in air traffic each year. That is not a small change! Because until now, air traffic has grown at >5% per year. And it wants to continue to do so after Covid - despite rising emissions and climate emergency.
Nov 1, 2021 • 8 tweets • 6 min read
It's #COP26 and the #aviation industry has no plan - and no intention - to to do its fair share to stay below #1point5.
🧵🔽 A thread about the top 5 false promises and the limits of 'green technologies' for '#SustainableAviation'.
#1 Efficiency. The #aviation industry tells us that it emits less and less CO2 per kilometre. What it doesn't tell us is that air traffic is growing much faster than efficiency is improving - resulting in higher climate pollution. #ReboundEffect
Sep 21, 2020 • 8 tweets • 3 min read
#Airbus announces that by 2035 it plans to build hydrogen "zero-emission" aircraft.
But #HydrogenPlanes are not the solution to the aviation industry's climate problem. Why? Thread. ⬇️ theguardian.com/business/2020/…1. Waiting for such technologies prevents climate mitigation today.
Disruptive technologies have been announced in various sectors for decades, and the world is still waiting for the vast majority of them. In the meantime, emissions continue to rise.
We can keep flying if we just offset the emissions, right? 💸➡️🌳
No, because so-called carbon offsets pose many problems and in most cases do not compensate emissions - on the contrary. #CarbonOffset#ClimateJustice
Let us explain. Thread. ⬇️
What are offsets? #Offsets are projects meant to reduce emissions that occur elsewhere. #Offsetting projects are mostly located in countries of the Global South. Many of them are hydroelectric projects, claiming to prevent production of energy from fossil fuels.
To keep the global temperature rise below 1.5 degrees, emissions must be reduced to 2.5 tonnes CO2eq per person per year by 2030.
One long-haul flight alone can exceed this budget – per person!
Air traffic is a major obstacle to climate justice. While it may seem normal for Western Europeans or Americans to fly, this "normality" has only existed for the last few decades and is still rare worldwide. Only about 10% to 20% of the global population have ever taken a flight.
Jul 20, 2020 • 6 tweets • 2 min read
Did you know? The carbon footprint is an invention of the oil industry. 🛢👣
So why does Stay Grounded use it? mashable.com/feature/carbon…
The concept of the carbon footprint is the invention of a communication campaign paid for by BP, one of the world's biggest oil producer. Its aim was to shift the responsibility for the climate crisis from fossil fuel companies to the individual. And it was successful.
Jul 17, 2020 • 9 tweets • 5 min read
Sehr lesenswert! 🤩🆓
Das Thema des neuen Südwind-Magazins ist #Flugverkehr – und wir durften einen großen Teil dazu beitragen.
Der Flugverkehr befand sich auf einem schier unendlichen Höhenflug auf Kosten des Klimas. Dann kam Corona. Warum es wichtig ist, dass er nicht auf den Wachstumspfad von vor der Krise zurückkehrt.
Jul 15, 2020 • 4 tweets • 2 min read
😖 Covid-19 recovery packages favour fossil fuels over renewable energies.
Across the G20 countries, for every Dollar of stimulus funding for clean energy 🔋, $1.50 goes to airlines ✈️, oil companies 🛢, and other fossil fuel industries, data show. qz.com/1880454/fossil…
"While rhetoric about the need for a green recovery has grown louder in the policy space, data shows that, in reality, fossil fuel producers and high-carbon sectors, such as airlines, are currently receiving 70% more recovery aid than the clean energy." iisd.org/media/energy-p…
Jul 6, 2020 • 6 tweets • 2 min read
Who flies, who doesn’t – and who cannot fly? 🤔✈️
To keep global temperature rise to under 1.5°C, we have to cut consumption-based greenhouse gas emissions down to 2.5t CO2 equivalents per capita in 2030, 1.4t 2040 and 0.7t 2050.
One long-haul flight already exceeds this budget.
Only 5-20% of the world population has ever taken a flight.
Of the few percent of the world population who have ever flown, an even smaller proportion flies regularly. For example, numbers for England show that 10% of the residents take more than half of the flights abroad.
Jun 30, 2020 • 9 tweets • 6 min read
CORSIA Baseline Change: Aviation’s Climate Regulation Is Broken Beyond Repair
Our press release on @icao's decision to change the baseline of the #CORSIA#offsetting programme. stay-grounded.org/corsia-baselin…#CORSIA is a total wreck beyond repair. In fact, it was broken from the very beginning. It covers a tiny fraction of aviation’s projected emissions and completely ignores the huge climate impact of airplane emissions other than CO2.
May 19, 2020 • 7 tweets • 4 min read
Regarding #airline#bailouts and #climate conditions, the French case is often referred to as a positive example. But if you look more closely, the ecological conditions of the #AirFrance bailout are only weak measures.
Let us explain – a thread. 👇 bit.ly/3g2IozD1) The conditions are not legally binding.
"Any airline bailout should include conditions that the airline reach net-zero carbon emissions by 2050", say @camjhep & @Brian_OCall.
Agree with that goal. But the proposed measures are insufficient: efficiency, biofuels, electric flying, e-fuels, offsetting.
Let us explain. 👇
Problem 1: "net zero CARBON emissions"
Flying produces more than just carbon emissions. NOx, contrails, induced cloudiness and other effects contribute to the fact that the total global heating impact of a flight is 2-5 times higher than just the emitted CO2.
Apr 28, 2020 • 12 tweets • 3 min read
AUA-Staatshilfen: 🔟 Maßnahmen für klimagerechten Umbau
AUA-Staatshilfen: Keine Millionengeschenke auf Kosten des Klimas
Unsere heutige Presseaussendung zum Beginn der Verhandlungen über #Staatshilfen für die #AustrianAirlines. #covid19at
Rettungspakete für die Flugindustrie müssen an sozial-ökologische Kriterien und Klimapläne im Einklang mit dem 1,5°C-Limit gekoppelt werden. Offener Brief an die Bundesregierung wird von 30 österr. Organisationen und Expert*innen wie Helga Kromp-Kolb und Ulrich Brand unterstützt.