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We almost got hit by an asteroid last week.


Parliament

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4 hours ago, SquishMitten said:

 


Are you an expert? Because these are the types of answers I’m curious about. If we had a satellite in deep space that detected an asteroid, could it a) relay the info to us quick enough, b) could we do maths well enough to determine where it would hit, and c) have enough time left to evacuate a city.

 

 

b) and c) should be blow it up or push it sideways so it will miss.

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21 minutes ago, Thujone said:

AN ocean hit is actually very bad. If enough water vapor is pushed into the atmosphere, you end up with 4-5 years of global cooling, which kills most of the crops and then about 50 years of slow global temperature rise until the oceans boil. Basically turns the planet into Venus. 

OK, Debbie Downer.

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2 hours ago, Thujone said:

AN ocean hit is actually very bad. If enough water vapor is pushed into the atmosphere, you end up with 4-5 years of global cooling, which kills most of the crops and then about 50 years of slow global temperature rise until the oceans boil. Basically turns the planet into Venus. 

Why the temperature rise?

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4 hours ago, Thujone said:

AN ocean hit is actually very bad. If enough water vapor is pushed into the atmosphere, you end up with 4-5 years of global cooling, which kills most of the crops and then about 50 years of slow global temperature rise until the oceans boil. Basically turns the planet into Venus. 

It would have to be a lot bigger than that one to do anything close to that level of effect. It would need to be "dinosaurs" level bad or damn close to it. 

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On 8/1/2019 at 7:17 PM, Thujone said:

AN ocean hit is actually very bad. If enough water vapor is pushed into the atmosphere, you end up with 4-5 years of global cooling, which kills most of the crops and then about 50 years of slow global temperature rise until the oceans boil. Basically turns the planet into Venus. 

This would have happened already then.  

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On 8/2/2019 at 7:47 AM, Parliament said:

All the water vapor?

Water vapor already represents 80-90% of the atmospheric greenhouse gas.  GHGs have a diminishing effect as you continue loading them into the atmosphere.  Water vapor also has a very short residence time as an atmospheric gas.  It shouldn’t cause a positive feedback.   I’d be more worried about tsunamis 

 

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