Was never much of a chemistry interested so just realizing this is fascinating. Hydrogen is here thanks to oxygen otherwise would escape Earth gravity.

Classical pianist by accident, thinker by choosing, artist by destiny

we actually lose roughly 3 kilograms per second of hydrogen and 50 grams per second of helium!

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The earth loses that amount, which is a miniscule amount. 
what i tend to find is the more i know the more i realise i dont know that much. 
"To describe the theory of thermal atmospheric escape, one starts with the concept that at a high altitude, which is around 500-600 km for Earth, the frequency of collisions between gas particles becomes negligible. Above this “exobase” is the “exosphere”, where a planet’s atmosphere merges into the vacuum of space. At the exobase, ascending particles are unobstructed, so particles fly away into space if they are moving upwards faster than the escape velocity. Below the exobase, collisions confine the particles. " Catling & Zahnle et al

Seriously????!!!!! Now I regret or not that chemistry when I was in school went into one ear and as soon as I finished with the grades it exited through the other ear. Maybe if I knew more I wouldn’t be as fascinated to discover this within the context of today’s understanding of the world and art. You mean we lose this on a planetary level, and was it always the same? Or depends on climatic conditions. How was during ice ages?