So it tells you something about the future how to

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So, it tells you something about the future. How to measure the depreciation (D t )? Depreciation of human capital= current expenditures of human capital . They take all of mineral & natural resources and they measure how it changes overtime. The depreciation has to get a monetary value Difference between world market prices & average unit extraction. But even this price is not right neither. They include CO2 emissions in the depreciation since it decreases the natural capital: the air is not clean anymore. ANS data: France: There is almost no difference between considering human capital & the depreciation and natural capital since France doesn’t have a lot of natural resources (but doesn’t consider what France buys to other countries). US: the effect is important because in the end of the 90 there was a big depreciation of the natural capital. 4. Biophysical indicators They are interested in the idea of strong sustainability (just about environment). Indicator in physical terms.
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They are concerned about the appropriation of solar radiation by the species that live on earth => the human population uses too much of the “solar budget”. Appropriation of photosynthesis Example: The ecological footprint Supported by NGOs, started in 1995. Measures how much of regenerative capacity of the biosphere is used by human capacity. The country footprint: total area used to produce the food that it consumes, absorb the waste it generates, and provides areas for its infrastructures. Everything is translated in area. Since the mid 80, we use more that 1 planet Data Global footprint network : our footprint is greater than 1, we are taking biological capacities of other species. Big differences among countries. Rich countries have a bigger footprint. Oil producing countries have the biggest ecological footprint. Denmark & Belgium have gig one too, maybe because of crop lands? The data are a bit of a paradox, for example US doesn’t have the biggest ecological footprint. How do we translate everything in hectares: main issue. The indicator is not very clear nor just.
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10/01/2019 Chapter 1 Non-renewable resources Nonrenewable resources: 2 types 1) Fossil fuels ( oil, gas and coal ) 2) non-renewable minerals ( iron ore, copper, nickel, etc) Fixed stock that you have under the ground that cannot recreate. Very valuable & object of great greed (gold, diamonds, oil) It creates big conflicts and wars. Notion of absolute scarcity For fossil fuels you cannot use them again once you used them. Data: Resource = total amount of resources that exist in the ground. They can be economically recoverable or not. Reserves = among the resources it is the deposit we know we have under the ground . We know they are recoverable with the technology we have. We know it is economically profitable given the cost & price of those resources.
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  • Fall '19
  • Ecological economics, Renewable resource

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