Discover and read the best of Twitter Threads about #1point5
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#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. 🔽 🧵
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.
Hydrogen is produced from other energy sources, has a significant energy loss during the process and is usually stored in liquid form at −253 °C.
It's #COP26 and the #aviation industry has no plan - and no intention - to to do its fair share to stay below #1point5.
Instead, it's stepping up its #greenwashing.
🧵🔽 A thread about the top 5 false promises and the limits of 'green technologies' for '#SustainableAviation'.
Instead, it's stepping up its #greenwashing.
🧵🔽 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
#2 Electric Flight. The aviation industry tells us the contribution of electric aircraft to reduce emissions will be significant. That's not true: the only aircraft likely to be certified this decade will be very small, we won’t see larger ones before 2050. Too late for #1point5.
