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Topic: Weather, Climate, and Environment

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longhorn320

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Re: Weather, Climate, and Environment
« Reply #4648 on: April 21, 2021, 01:47:15 PM »
I just don't see a practicable solution here.  Throwing money at it with no consideration for facts is stupid.
still rising at same rate even though our production was way down?

what does that point to
They won't let me give blood anymore. The burnt orange color scares the hell out of the doctors.

Cincydawg

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Re: Weather, Climate, and Environment
« Reply #4649 on: April 21, 2021, 01:58:32 PM »
Down 7% in the pandemic, only 7%, not really enough to have much impact at all, and the rate of increase did slow slightly.

847badgerfan

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Re: Weather, Climate, and Environment
« Reply #4650 on: April 21, 2021, 02:30:47 PM »
Lots and lots of big trucks delivering things to distribution houses, to get to our houses, during the last year.
U RAH RAH! WIS CON SIN!

FearlessF

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Re: Weather, Climate, and Environment
« Reply #4651 on: April 21, 2021, 02:32:58 PM »
by 2070 most of the big trucks might be electric
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betarhoalphadelta

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Re: Weather, Climate, and Environment
« Reply #4652 on: April 21, 2021, 02:58:12 PM »
I know Elon is all about the electric semi, but I could see hydrogen fuel cells being a better opportunity for long-haul trucking. 

Cincydawg

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Re: Weather, Climate, and Environment
« Reply #4653 on: April 21, 2021, 03:14:55 PM »
The hydrogen supply, safety, and distribution strike me as challenges.  You can't get it out of the ground.

But heavy vehicles may indeed be better suited to fuel cells.

betarhoalphadelta

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Re: Weather, Climate, and Environment
« Reply #4654 on: April 21, 2021, 03:20:13 PM »
The hydrogen supply, safety, and distribution strike me as challenges.  You can't get it out of the ground.

But heavy vehicles may indeed be better suited to fuel cells.
I will admit to not having much expertise on it... I know the advantages are that the byproduct is water, and the speed/ease of refueling relative to BEV. I understand a major disadvantage is that the energy necessary to extract hydrogen from other sources and turn it into usable fuel are quite high, which of course may defeat the purpose of using it if those energy sources are carbon-dependent. 

I think the heavy vehicles expected to run near-continuously may not be ideal for BEV, and we don't want them to keep running on diesel if we can find a cleaner non-emitting alternative. Hydrogen fuel cells *might* be an alternative that fits the use case without emitting CO2 or other pollution.

Cincydawg

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Re: Weather, Climate, and Environment
« Reply #4655 on: April 21, 2021, 03:25:24 PM »
Yeah, fuel cells are more akin to powerful batteries, as the hydrogen has to be produced initially using energy from somewhere else.

It you had a location with excess energy, it could make sense to make hydrogen there.

FearlessF

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Re: Weather, Climate, and Environment
« Reply #4656 on: April 21, 2021, 05:20:34 PM »
the hydrogen bottle we use for fuel cells are very similar to propane bottles

probably as safe as pumping liquid gasoline and diesel fuel.
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OrangeAfroMan

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Re: Weather, Climate, and Environment
« Reply #4657 on: April 21, 2021, 05:43:31 PM »
I know Elon is all about the electric semi, but I could see hydrogen fuel cells being a better opportunity for long-haul trucking.
This just made me think of high-speed rail for goods.   
Don't need windows or views or elevated sections, fewer hoops to jump through with no human lives at stake, etc.  
.
And it might just make sense financially.

Crazy?
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betarhoalphadelta

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Re: Weather, Climate, and Environment
« Reply #4658 on: April 21, 2021, 05:57:29 PM »
This just made me think of high-speed rail for goods. 
Don't need windows or views or elevated sections, fewer hoops to jump through with no human lives at stake, etc. 
.
And it might just make sense financially.

Crazy?
What's the point of "high speed" rail for goods? 

Cincydawg

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Re: Weather, Climate, and Environment
« Reply #4659 on: April 21, 2021, 07:51:59 PM »
Diesel is not flammable.  It is combustible.  You can throw a lit match on it and the flame goes out.

Leaked hydrogen won't pool in low places at least.  But cryogenic hydrogen needs different storage than propane obviously.

betarhoalphadelta

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Re: Weather, Climate, and Environment
« Reply #4660 on: April 21, 2021, 07:56:05 PM »
Diesel is not flammable.  It is combustible.  You can throw a lit match on it and the flame goes out.

Leaked hydrogen won't pool in low places at least.  But cryogenic hydrogen needs different storage than propane obviously.
Really?

I don't recall for diesel, only gasoline. I remember when my idiot buddies and I were trying to light a bonfire we'd throw gasoline on the pile of logs and throw a lit cigarette on it. And, unlike the movies... Nothing happened. But of course a lit match would do it.

Does diesel not even ignite with a lit match?

longhorn320

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Re: Weather, Climate, and Environment
« Reply #4661 on: April 21, 2021, 08:00:25 PM »
https://www.nytimes.com/2021/04/20/business/tesla-crash-texas.html

no one here has mentioned this so I thought Id post this

They won't let me give blood anymore. The burnt orange color scares the hell out of the doctors.

 

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