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Guy McPherson

Re: Guy McPherson

Unread postby Fredrik » Thu 14 Mar 2019, 10:22:07

vtsnowedin wrote:
Fredrik wrote:The suitability of Saharan sand for glass is a meaningless debate if there is not enough water for growing things in greenhouses/tunnels.

The glass would greatly reduce the amount of water lost to evaporation making trucked in water or desalinated sea water viable.
I don't think this is a cheap option just cheaper then the practicality of moving farming north into what is now boreal forest.


I would suppose that gradually expanding farmland northwards - cutting down trees, removing stubs, roots etc. and fertilizing and alkalizing the soil - would be a daunting task, but still more viable than building greenhouses or tunnels in the middle of sand deserts and then trucking in both fertilizer and water from far away, considering the cost of fuel and energy for water desalination. But I haven't done any calculations for the latter scenario.
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Re: Guy McPherson

Unread postby vtsnowedin » Thu 14 Mar 2019, 10:32:26

Fredrik wrote:
vtsnowedin wrote:
Fredrik wrote:The suitability of Saharan sand for glass is a meaningless debate if there is not enough water for growing things in greenhouses/tunnels.

The glass would greatly reduce the amount of water lost to evaporation making trucked in water or desalinated sea water viable.
I don't think this is a cheap option just cheaper then the practicality of moving farming north into what is now boreal forest.


I would suppose that gradually expanding farmland northwards - cutting down trees, removing stubs, roots etc. and fertilizing and alkalizing the soil - would be a daunting task, but still more viable than building greenhouses or tunnels in the middle of sand deserts and then trucking in both fertilizer and water from far away, considering the cost of fuel and energy for water desalination. But I haven't done any calculations for the latter scenario.

The people actually risking the money will use a very sharp pencil when computing which way is the cheapest. Location matters a lot with desert between LA and San Diego being a lot different then something in central Nevada etc.. The availability of solar power adjacent to southern sites is a big factor that I think swings it in the Souths favor but you would have to wait until the need arises to get real prices to consider.
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Re: Guy McPherson

Unread postby onlooker » Sat 16 Mar 2019, 20:37:20

Eight Distinct Paths to Loss of Human Habitat


https://guymcpherson.com/2019/03/edge-o ... n-habitat/
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Re: Guy McPherson

Unread postby jupiters_release » Sun 17 Mar 2019, 12:04:22

Someone needs to inform Guy this anthropogenic sixth great extinction will not wipe out all life on earth. There's already a relatively new species of fungi thriving at Fukushima Daiichi.
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Re: Guy McPherson

Unread postby onlooker » Sun 17 Mar 2019, 12:09:10

jupiters_release wrote:Someone needs to inform Guy this anthropogenic sixth great extinction will not wipe out all life on earth. There's already a relatively new species of fungi thriving at Fukushima Daiichi.

I thought Guy thought just humans would go extinct not all life.
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Re: Guy McPherson

Unread postby jupiters_release » Sun 17 Mar 2019, 15:29:26

onlooker wrote:
jupiters_release wrote:Someone needs to inform Guy this anthropogenic sixth great extinction will not wipe out all life on earth. There's already a relatively new species of fungi thriving at Fukushima Daiichi.

I thought Guy thought just humans would go extinct not all life.


You didn't watch his video you just linked?
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