Or the idea of abandoning Earth because it's too hostile to grow crops with some dust storms, yet the idea of colonising a distant, extremely harsh-for-human-li

Or the idea of abandoning Earth because it's too hostile to grow crops with some dust storms, yet the idea of colonising a distant, extremely harsh-for-human-life planet is a more realistic idea. Surely building massive "vertical farms" or other artificial environments here on Earth would be more cost effective and realistic. Overall I think we may be thinking too deeply about the plot ;-)