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Cost of a solution: can we incorporate risk in the costs calculation?

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Cost of a solution: can we incorporate risk in the costs calculation?

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what is "growth within the limits"?

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Are accounting for production or consumption? eg things produced in China are bought by Europeans...

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any ideas how we're going to keep refrigerating technologies going without them?

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resources needed to function as humanity

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resources needed to function as humanity

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Function as humanity, as in with all our technical devices?

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In addition to data presented in the video, that's the chart of CO2 emissions/climate change correlation

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the socio-economic and cultural functions of the biosphere

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the socio-economic and cultural functions of the biosphere

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Just thought this was an interesting idea I hadn't really considered, the fact that we can quantify having access to nature in terms of improved outcomes in term of health or better productivity at work. It's the sort of idea that obvious when it's pointed out but just not a way in which I find I thing about nature

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- Are we (scientists?) trying to prevent the collapse of the ecosystem, or only to postpone it?

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energy enters the ecosystem through photosynthesis and chemosynthesis 

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energy enters the ecosystem through photosynthesis and chemosynthesis 

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Side question: is the proportion carbon mass / body mass equivalent between mushrooms, plants, animals, bacteria etc.?

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Man's economic power requires massive energy consumption. This energy consumption is transforming the metabolism of the biosphere. 

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Man's economic power requires massive energy consumption. This energy consumption is transforming the metabolism of the biosphere. 

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from what I understood, energy quantity stays the same but entropy makes it spread throughout the system, so it gets harder to foster it for use and transformation.

Then, is "quality" a synonym for "distribution" ? High quality being irregular and low quality being uniform?

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A big mine (destructive) or an artificial island (generative) are both equally artificial. Is one better than the other?

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=modifies the Earth

--> Anthropocene

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Correlation between human way of life and planet pollution

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Correlation between human way of life and planet pollution

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Socio-economic indicators are correlated to biological and geological indicators (= the more the human society grow, the more the pollution extends)

Put another way : the more our global life quality increases the more we pollute.

The Great acceleration = in 2 generations, humanity has exceeded the ability of the Earth to sustained its activities

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Law of energy conservation : in an isolated system, energy never dispear it transforms itself from one form to another (electricity, heat, movement..).
(We consider the Earth as an isolated system)

Human relies on energy to keep on their way of life and we are always looking for more energy (oil and all).
When we say there is less and less energy it is not true (because of the conservation principle) it is the quality of the energy that dicreases.

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Energy conservation and the living realm

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Energy conservation and the living realm

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Living being reproduce in order to keep existing, their Metabolism isn't a closed system.

Their 1rst source of energy is their food.
The primal source of energy on Earth is the sun, usable through photosynthesis

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Definiton : region of the earth crust occupied by tranformators that change the cosmic ray into active earth energy (ex : photosynthesis)

Caracteristics : INTERDEPENDANCE
- who eats who ?
- who helps who ? (wood wide web)

Principles :
- diversity and interdependance
- mater in movement
- ingeneer species
- wastes of some are food for other

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5 functions :
- to support (to eat)
- to supply (water)
- to regulate (purification)
- culural and social (nature is used as an economic product)
- health (nature influences positively depression for ex)