Discover and read the best of Twitter Threads about #contrails
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#contrails
It's pretty straightforward. Burning hydrocarbon fuels produces water vapour... LOTS of it.
1.37 times the mass of the fuel burned, in fact.
An airliner will produce anywhere between 1-5kg of water vapour per SECOND in the cruise:
It's pretty straightforward. Burning hydrocarbon fuels produces water vapour... LOTS of it.
1.37 times the mass of the fuel burned, in fact.
An airliner will produce anywhere between 1-5kg of water vapour per SECOND in the cruise:
That water vapour exhausts into freezing cold air...
It is on average -56.5⁰C at the tropopause - the upper limit of the lower layer of the atmosphere where jets cruise.
How it then behaves depends entirely on hiwnmuch water vapour that air is already holding...
It is on average -56.5⁰C at the tropopause - the upper limit of the lower layer of the atmosphere where jets cruise.
How it then behaves depends entirely on hiwnmuch water vapour that air is already holding...
If the air is very dry, visible condensation may not appear at all...
If it has SOME relative humidity, the water vapour from the exhaust may initially condense out, but then re-evaporate... sometimes almost immediately, sometime after a few minutes...
If it has SOME relative humidity, the water vapour from the exhaust may initially condense out, but then re-evaporate... sometimes almost immediately, sometime after a few minutes...
SUPER LONG THREAD: Chemtrails: Who, What, Were, Why, When and How: The most thorough thread on Twitter.
1.) Lets begin...
1.) Lets begin...
2) WE SAY: Chemicals are sprayed from planes. They take over the sky, block the sun & shed dangerous
particles on land and sea that destroy the ecosystem.
THEY SAY: Its just condensation; nothing has ever been sprayed, nothing is currently being sprayed!
particles on land and sea that destroy the ecosystem.
THEY SAY: Its just condensation; nothing has ever been sprayed, nothing is currently being sprayed!
3) Other names for #chemtrails: aerosol biowarfare, #SAI (Stratospheric Aerosol Injection), Exotic Weapons Systems, Aerosol particle disbursement, Weather Modification, Solar Radiation Management, #GeoEngineering; regardless of name, its planes spraying chemicals into the sky
1️⃣ Deciding between multiple alternative #aviation fuels is a complex and daunting task, as all options have unique advantages and weaknesses. #RECCE, our new tool, aims to streamline this decision-making process: recce.aiatools.org
2️⃣ The Resource to Climate Comparison Evaluator (RECCE) allows users to systematically compare 15 aviation fuels across the entire system, from the resources required to produce each fuel to #emissions resulting from infrastructure, manufacturing, on ground operations and flight.
3️⃣ The Resources section displays the cost, #electricity and feedstock required by 2035 to produce enough of each #fuel to fly everyone in the world 1,300km - the average distance flown by each person on Earth in 2019.
The insight report on sustainable battery and hydrogen-powered flight we produced in collaboration with @wef outlines 8 unlocks that would enable novel technologies to accelerate #netzeroflight
🧵 Here is a summary of these unlocks:
🧵 Here is a summary of these unlocks:
1⃣ Aviation batteries must be charged with #lowcarbon electricity to ensure reduced emissions. To achieve this, airports could store #renewableenergy to avoid depending on the grid or batteries could be swapped in and out of aircraft to increase charging flexibility.
2⃣ While green hydrogen is a viable aviation fuel, care must be taken if blue hydrogen is to be used in aviation, as its production might result in significant #CO2 emissions and methane leaks that offset emissions savings made in-flight.
1. #COVID19 #Vaccinations #AntiVax #Morality
I think that I have just experienced something which I suspect many have already.
In simple terms, people hiding the fact that they have been exposed to those with confirmed #Coronavirus and have been ill themselves...
I think that I have just experienced something which I suspect many have already.
In simple terms, people hiding the fact that they have been exposed to those with confirmed #Coronavirus and have been ill themselves...
2. #COVID19 #Vaccinations #AntiVax #Morality
...offering that they have tested negative. But, you then discover they're refusing to receive the #vaccine!
In other words, they wish to express their "libertarian" selves, but your views are secondary..
...offering that they have tested negative. But, you then discover they're refusing to receive the #vaccine!
In other words, they wish to express their "libertarian" selves, but your views are secondary..
3. #COVID19 #Vaccinations #AntiVax #Morality
...perhaps even your health is secondary to their own "free" views?
Some openly declare they are anti-vaxxers. The stock phrase is that they are now #freethinkers...
...perhaps even your health is secondary to their own "free" views?
Some openly declare they are anti-vaxxers. The stock phrase is that they are now #freethinkers...
Flying will be a Major Source of our Global Warming Problems and Is Currently a Great Example for Climate Injustice – so Let‘s Put our Energies here Before it‘s Too Late!
A replik #Thread @SasjaBeslik medium.com/@sasjasocial/f… @transenv @flyingless @Fridays4future @GretaThunberg
A replik #Thread @SasjaBeslik medium.com/@sasjasocial/f… @transenv @flyingless @Fridays4future @GretaThunberg
Let‘s start this thread with the points we agree on @SasjaBeslik:
1 Global warming is a systemic problem and should be addressed first and foremost on a systemic level. Oil companies, airlines, governments and a profit orientated financial and economic system are responsible for the destruction of our planet and for the injustice related to it.
