Re: AGW. LNG Worse Than Coal.

On 10/31/2024 4:15 PM, Scott Lurndal wrote:

Lynn McGuire <lynnmcguire5@gmail.com> writes:

On 10/31/2024 3:11 PM, Bobbie Sellers wrote:

On 10/31/24 11:58, Lynn McGuire wrote:

On 10/31/2024 11:06 AM, Paul S Person wrote:
...

 

>
      But by use of fossil fuels we have ensured the death
of nations all over the planet.
      Now cities like San Francisco imagine that they can
in the future ameliorate the effects of rising waters by
building sea wall but these will not work when the water from
the SF Bay is high enough to intrude into the Central Valley.
The food supply will begin to suffer as the salt water intrudes.
Of course if we build a high dam at the Carquinez Strait we
might get a very contaminated fresh water lake. It would take
a long time to get the water cleaned up and might be simply
impossible.
>
      bliss

>
Good luck in getting batteries to work in tractors and harvesters that
run 24 hours per day as many do.

 You are not a farmer, I see.     While there are short periods
of the year where a combine harvester may work the night, that's the
exception not the rule.  Likewise during field prep, although
there is seldom any demand to do that during darkness.
 Mostly, tractor use is intermittent throughout a day.
 

The battery manufacturers and the
vehicle companies are having severe problems keeping today's liquid
lithium batteries in the 59 F to 85 F service range for severe service

 https://www.tesla.com/semi
 

And of course, cost is a major condition here.  Many of the farmers now
buy tractors and harvesters using collectives due to the extreme costs
of such equipment.

 Which is mostly in the electronics, IC engines, and proprietary software.
Replacing the IC powertrain with an electric powertrain will certainly
reduce the overall cost.
 https://www.forbes.com/sites/michaelbarnard/2023/11/27/all-farm-equipment-including-tractors-and-combines-will-be-electric/
    "A couple of Hylio\u2019s biggest drones, the AG-272, can
    apply as much product in a day as a $700,000, top-end,
    John Deere tractor, but cost only $200,000 with trailer
    and support gear and run on dirt-cheap electricity. And
    they can be fixed at the side of the field. They are incredibly
    simple devices with few moving parts, and servicing them is
    trivial for farmers. That\u2019s no longer true for tractors and combines."
     "What about seeding? Well, as with product application, seeding
    is increasingly done with seeding drones that put seeds precisely
    where they should be with equal spacing and no soil compaction.
    "But you can\u2019t harvest crops with a quadcopter. And you can\u2019t
    spread tons of fertilizer across massive fields before planting. However,
    fields are flat, speeds are low and torque is king. Those are the
    conditions in which battery electric vehicles shine.
    "That\u2019s with today\u2019s battery energy densities. As the series
    has made clear, battery energy densities that are double what Teslas
    currently use are commercially available from Chinese EV battery giant
    CATL now. Further, silicon battery chemistries with a potential energy
    capacity five times that of CATL\u2019s new battery are commercializing
    in 2023. There are multiple vendors and groups which have demonstrated
    the technical breakthroughs required for their use. As a reminder,
    silicon is cheap and ubiquitous."

The harvesters (cotton, corn, maze, etc) around here run day and night when they run for a couple of months in the fall.  There are not many charging outlets on the fields surrounding my house and my office complex.
I have watched the farmer of 900+ acres just to the south of my office complex plow his 900+ acres in just a week using a huge 300+ hp turbo diesel tractor that can pull a 20+ foot wide batwing plow.  He has huge flood lights on his tractor and runs 16+ hours a day at 70 years old. He just plowed everything under for the third ??? time this year after the harvester went through.
Lynn