by eclipse » Sat 25 Feb 2017, 18:27:17
$this->bbcode_second_pass_quote('ralfy', 'I')t has to do with the realities of limits to growth:
https://www.theguardian.com/commentisfr ... g-collapseThat is, biocapacity (which includes availability of oil and various minerals) is limited, but the world population continues to grow. That means ecological footprint per person has to remain small in order to ensure optimal health.
But IPAT shows us the way? T - including all our energy resources - can either be a multiplier of environmental impact or divider. If we use the right T, like farming 9% of the world's oceans for kelp, we could have:-
* half a kilogram of seafood per person per day, to feed a world of 10 billion people!
* all the biofuels and biogas we could need to replace fossil fuels and provide the ultimate backup to wind and solar power, or work harmoniously with fast ramping gas to run a smoother nuclear grid,
* remove ocean acidity
* restore our atmosphere to 350ppm by 2085
In other words, seaweed is a silver bullet to feed the world, save the oceans, and save us from climate change, all in this free PDF. "Negative carbon via Ocean Afforestation". Just register, and download it for free.
http://www.psep.ichemejournals.com/arti ... 57-5820(12)00120-6/abstract
That's just ONE technology: seaweed farming, which would not only give us all the methane we want (slowly biodigested in big submersible bladders at 100m depth, only collected after 135 days composting), but as mentioned, soak up all the CO2 and put it in big bladders on the ocean floor.
$this->bbcode_second_pass_quote('', 'U')nfortunately, population continues to rise, which means footprint per capita has to decrease. It has to decrease further given long-term effects of environmental damage and global warming.
Which is exactly what I am arguing can happen as we move forward in so many areas. Carbon neutral energy from nukes or a combination of renewables + kelp biogas backup can give us everything we need.
(YES, TO SCALE, YES, I've seen "End of suburbia" and read Heinberg's The Party's Over and Powerdown and seen those guys saying "But there isn't enough land!" They forgot about the ocean, didn't they?)
$this->bbcode_second_pass_quote('', 'M')eanwhile, the global economy on which that population depends is capitalist, which means footprint per capita has to keep growing in order to ensure that much of the wealth (which consists primarily of numbers in hard drives) of the rich (which controls most of that economy) continues to grow. The same goes for both the middle class and those who want to be part of the middle class: