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Eclipse Now

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Eclipse Now last won the day on March 3

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  1. And rather than just quoting something - what are your thoughts on the subject? I'm convinced we have the technology to offer everyone on earth a convenient modern life. We just need the political will power to do that. Ecocity or New Urban planning is one of those technologies. Please watch this video, it's only 4 minutes and it rocks.
  2. Yeah, plastics, pollution, overuse - half the world's rivers don't even reach the ocean. But new types of agriculture are coming that use water totally differently. On the positive side, there are efforts in some of our cities to unearth old rivers. The Cheonggyecheon in Seoul is a great example. This river was once a mere drain, covered in traffic clogged highways and forgotten. Now it is a peaceful recreational park and cycleway. It attracts crowds that support local businesses. It cut through the choked highway and - with a few bus services and cycleways - the highway traffic didn't ju
  3. I would put it slightly differently and say that our current technologies are incompatible. That is changing. You mentioned hemp above? That is just one example of alternative feedstocks that can fundamentally change the industrial ecosystem. I'm convinced we already have the Technology to feed, clothe, house, warm, cool, transport, and educate all 11 billion of us that are modelled to be here this century. Renewable energy and Breeder Reactors that eat nuclear waste could power our lives. New Urbanist and Ecocity plans can give us comfortable walking-distance lifestyles on a fracti
  4. I see climate change as both a dangerous problem to national prosperity in itself, but also an extraordinarily dangerous threat multiplier - and that the geopolitics of climate change could vastly outweigh problems with sea level rise etc. One big nuclear war could solve climate change - and bounce us back into the ice-age direction. But that might just ruin our whole day! On the other hand, I'm also very sceptical about various renewable energy papers. The answer? Abundant reliable power from nuclear energy - but in many nations - and especially my homeland of Australia where it remains
  5. Help! My opinion seems to be changing and I don't like it! I'm a fan of nuclear power for Australia, but I'm starting to have second thoughts. Not because of any over-hyped problems with nuclear - but because of how cheap Wind and Solar Plants (WASPS) are becoming. 100% renewable papers used to assume all this extra electricity storage from pumped hydro acting as big 'batteries'. But on-river pumped hydro is already over-used, doesn't have enough estimated resource to backup today's grids, and has serious ecological concerns with these dams destroying our last fisheries and intact ecosyst
  6. This is my most recent draft. I hope it summarises my core argument first and has clearer writing about the other peripheral subjects later. Warning: it's fairly long, but the first 2 points are so worth it! Stop at Blue Mars if you wish as that's half way, and everything after there becomes a bit more speculative. MARS V the BELTERS While I eventually would love to see *all* of the solar system settled and O'Neil colonies everywhere, I think we should start with Mars first. There are 3 main reasons: the City Size Bonus, Technology Bottlenecks, and the Myth of Self-Replication Mining ship
  7. he box to come up with this as it's a whacky option that's so crazy it just might work. I wouldn't have thought of it in a million years. TIDALLY LOCKED VENUS Throw tens of thousands of large asteroids or Kuiper belt objects at Venus to speed up its rotation till its day equals its sun, locking one side permanently towards the sun. The sunny side would be perfect for solar energy the CO2 would drop and fall on the dark side We would colonise the middle twilight ground Creates amazing energy potential on the sunny side Deals with CO2 once and for all Tens of thousands of asteroid impa
  8. I said Zubrin smashed it. This was the reply to my post on another forum. I think I'm changing my mind! No, he doesn't. He's a smart guy, but he's also dogmatic. He can't get past his Mars (Semi) Direct plan. His criticisms of ITS read like a blow for blow list of differences from Mars Direct. Mars Direct has its merits if you want an Apollo style mission. It makes no sense for this context. SpaceX wants to build an interplanetary railroad. That requires bringing launch costs down, which requires reusablity. (Fuel costs far less than building safe, dependable, human rated, rocket ships.) If
  9. Thanks Craig, great summary and I finally get it. I guess the first few flights should absolutely have an ITS that lands a fully fitted out habitat. But once there are say 500 to 1000 people on Mars, we can revisit the ITS plan to try and get the ticket price down by having the Mars base build their own habitats. The reason is cost. It's the old problem of the cost of a plane flight if the passengers are buying the plane outright for one flight. So the first 5 to 10 trips should definitely land habitats fully fitted and ready to live in and extend! But at some point the goal would be to bring
  10. Hi all, can anyone explain to me in English how Zubrin thinks he has a plan to get 10 times more use out of Elon's ships? I could not understand how the 1 ship gets 10 times more use.
  11. OK, so vat-grown meat is a thing. http://www.nextbigfuture.com/2017/02/lab-grown-meat-prices-have-dropped.html But what if the feedstock is unsustainable? Could we use processed kelp as a feedstock for all our meat and chicken and turkey needs, so that we would never have to kill real live animals for protein again? Anyone know any biochemists that might work in this field?
  12. Hi all, I found the answer. Let me summarise! Seaweed farms could revolutionise the world. 2% of the world's oceans are nutrient rich enough for these farms. Nutrients come from coastal erosion or oceanic upwelling. Sometimes there is nutrient pollution which causes algal blooms and dead zones. Seaweed farming can help mop up excess nutrients and restore ocean health. A new vertical column method of farming the oceans grows both kelp and shellfish and oysters and even encourages fisheries to grow in an ocean ecosystem based approach. Watch this 15 minute TED talk about seaweed feeding the
  13. The seaweed ecology wiki only mentions sunlight and a shallow enough anchorage point to grow seaweed. Nutrients may not be the limiting factor I thought. https://en.wikipedia.org/wiki/Seaweed#Ecology Tim Flannery again:- If big oil get wind of this, then let them at it! 1. 200kg of seafood per person! That’s over half a kilo per day! 2. Some of our NPK nutrients – normally flushed out to sea via the toilet – recaptured for land farming. 3. And biogas energy backup for a renewable world that the politicians and pundits seem so intent on! 4. Maybe some biochar left over to help retain that NPK
  14. Hi all, I've edited this thread to simplify the issues, and investigate the following questions:- * SYNGAS FROM SEAWEED TO BACKUP ALL RENEWABLES WORLDWIDE! A ton of CO2 concentrated into biomass is about a ton of wood. 40 Gigatons would 40 cubic kilometres of woody waste to dispose of each year. We already know how to biochar any dried biomass waste. 40 cubic kilometres into a biochar unit could produce maybe 20 cubic km of biochar and 20 cubic km of synthetic gas to replace petroleum and natural gas? Wow that's a lot. That's vastly more than the 'cubic mile of oil' we use a year (or 1.6 cub
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