“For many, these white trails criss-crossing skies on crisp mornings seem a benign, photogenic phenomenon. But contrails can last a long time and turn into cirrus clouds that trap heat in the earth’s atmosphere. Although these persistent contrails also create a small cooling effect by reflecting solar radiation during the day, their net effect is to trap heat and --like carbon emissions-- accentuate global warming. “ Learn more about contrails, an underrated contributor to aviation’s climate impact: https://lnkd.in/eyuGQzfv #zeroemission #hydrogen #aviation #climate
Clean Aviation There should be a similar narrative for the water cycle, in hydrogen-powered aviation. Utilizing nine liters of water to produce one kilo of hydrogen shall not be well received by many. Same for dumping back nine liters of water into the atmosphere, as greenhouse agent water vapor. Maybe hydrogen-powered aviation should look into atmospheric water harvesting. If additional costs are manageable (they should be, when compared to carbon capture), AWH could close the water cycle. And its discussion.
I’m confused. Zeroavia’s target product offering has no association with todays contrails typically created above 25,000 feet.
Aerospace Consultant, Self-Published Author
2moMorning contrails often cool the planet during their existence by reflecting the sun's energy back into space. When this happens, they are countering the carbon emissions of the aircraft making them.