Has anyone noticed the trails left by planes in the sky lately? In science, these are defined as contrails, and they can be permanent or short-lived depending on atmospheric conditions. But do you think the impact of increasing air traffic on the balance of the atmosphere is being discussed enough? Do we only see the sky as a transportation route, or do we sufficiently consider its role in the climate system? Shouldn't we question the impact of technology and human activities on the planet more? Do you think we forget to talk about larger systems amidst daily discussions?

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