kayl_breinhar

kayl_breinhar t1_jea0ru0 wrote

Honestly, if radiation from a GRB close enough to hurt us hit you, the first thing you'd notice would be intense nausea and/or unexplainable blindness.

And with a prolonged full body dose of radiation that would probably make the Chernobyl Elephant's Foot look like a Rabbit's Foot, your central nervous and immune systems would be overwhelmed by a complete bodily failure and you'd just pass out and never wake up.

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kayl_breinhar t1_j25tdjk wrote

Not just one factor. Climate change is one part of the whole when it comes to biosphere collapse. Massive use of persistent pesticides have disrupted the beneficial insect life on the planet - not just the bees. Microplastics in combination with warming and increasingly deoxygenated seas in combination with massive overfishing are killing ocean life. The percentage of wildlife on the planet is the lowest it's ever been since hominids first showed up, and we just keep making more of ourselves.

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kayl_breinhar t1_j25klbf wrote

Nah, a supervolcanic eruption is definitely in the Top 5, maybe even the Top 3, but the more likely candidate in the near future is a continental biosphere collapse.

The entire biosphere won't fail everywhere, but whatever/wherever doesn't will be what everyone fights over, and that fighting/warring will be what kills whoever's left.

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