<div dir="ltr"><div><br></div><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br>From: <strong class="gmail_sendername" dir="auto">Friends of Annita and Tomas Harlan</strong> <span dir="auto"><<a href="mailto:friends-of-annita-and-tomas-harlan@googlegroups.com">friends-of-annita-and-tomas-harlan@googlegroups.com</a>></span><br>Date: Sun, Sep 13, 2026 at 4:20 PM<br>Subject: Re: What Keith has been up to<br>To: Friends of Annita and Tomas Harlan <<a href="mailto:friends-of-annita-and-tomas-harlan@googlegroups.com">friends-of-annita-and-tomas-harlan@googlegroups.com</a>><br></div><br><br>There are two people who have passed on that I really miss, Annita Harlan when I have something to edit and David MacKay, who wrote "Renewable Energy Without the Hot Air." Annita edited the space farm paper Carolyn and I wrote )in 1975) that caused the L5 Society to come into existence. L5 was one of the main places promoting solar power satellites. <br><br><div><div style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small">I worked for decades on solar power satellites. Finally gave up about ten years ago after producing the "Beamed Energy Bootstrapping" video. The economics failed, and it is still out of reach though there are a number of people still trying.<br><br>But an offshoot of that work led to a proposal to use curtailed renewable power to process carbon in MSW (trash) into syngas that can be stored and burned for power or turned into liquid fuels. Recently, it dawned on us that if you feed the gasifiers on vast amounts of biomass, you can make synthetic fuel at a profit *and* sequester half the carbon (as CO2). This provides a way to end the use of oil while avoiding mass deaths from starvation that would result from a lack of diesel to farm ans ship food, while ending the increases in CO2 that are warming the Earth.</div><div style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small"><br></div><div style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small">(You need to convert half the CO and steam to hydrogen via water gas shift to get the right ratio to feed the F/T fuel plants. You sort out the CO2 and sequester it. The biomass can come from the boreal forests, which are going to burn anyway due to global warming, unless they are cut down and turned into fuel.)</div><div style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small"><br></div><div style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small">It is a very large project. It gets little traction. Given the current oil situation, you might think it would. But it is a renewable related project and those are out of favor in the US.</div></div><div style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small"><br></div><div style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small">If anyone can think of a way to push this along, please let me know. Or just do it.</div><div style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small"><br></div><div style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small">Keith</div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Tuesday, 21 April 2026 at 00:54:32 UTC-7 Keith Henson wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><a href="https://engrxiv.org/preprint/view/6777/11088" rel="nofollow" target="_blank">https://engrxiv.org/preprint/view/6777/11088</a>
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<br>Best wishes,
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<br>Keith
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