The day of passing (Fumisterie Global Footprint Network)

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Re: The day of passing (Fumisterie Global Footprint Network)




by phil53 » 08/08/16, 16:26

I understand that this shocks your scientific minds, I find it easy for ordinary people to understand.
Today we have issued as many co2 as the earth can naturally absorb in 1année.
It is certainly approximate but very speaking, even for an abode.
Yet our decision makers and ourselves to a certain extent act as if it would not change anything!
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Re: The day of passing (Fumisterie Global Footprint Network)




by moinsdewatt » 08/08/16, 19:56

How does Global footprint network calculate "the day of the exceedance"?

Lena Corot the 08 / 08 / 2016 New Factory

The planet lives on credit according to the NGO Global Footprint Network. Each year, this organization does a study to determine the date from which humanity has consumed more resources than the planet can provide. The "overtaking day" is set for August 8 this year. But how does the NGO set this date?

The NGO Global Footprint Network, an international research institute, calculates "the day of the excess" every year. According to his study, as of August 8, 2016, humanity has already "consumed as many renewable natural resources as the Earth can produce over the entire year". Human's ecological footprint thus exceeds the planet's capacity to regenerate its resources and absorb waste, including carbon emissions. From this date, and until the end of the year, Man lives on credit.

But how does the NGO calculate this date? The Global Footprint Network study compares the bio-capacity and the ecological footprint which are then multiplied by the number of days in the year to arrive at this famous "day of overshoot".

Different facts added to calculate bio-capacity

The bio-capacity of our planet is "the capacity of ecosystems to produce useful biological material and to absorb the waste generated by human societies, taking into account current management systems and extraction techniques".

Bio-capacity is calculated by multiplying each exploitable area by different factors: a country-specific yield factor and a conversion factor. These factors necessarily have a part of randomness. For example, researchers decide to apply such a factor in France for a specific type of agriculture. But the yield is not the same from one corn field to another, but the factor applied will always be the same.

Moreover, these factors make it possible to have figures in global hectares. To calculate the bio-capacity all these figures in global hectares are added that it is the profitability of a field of wheat or the carbon footprint while passing by the profitability of such ocean. Thus, completely different facts are added together.

Unclear criteria for calculating the ecological footprint?

The ecological footprint is the impact of our life on the environment. Experts measure "the amount of biologically productive space (on land or in water) that a person, population or activity needs to produce all the resources consumed and to absorb all the waste produced, taking into account the available technologies and management practices implemented ". The ecological footprint is also calculated in global hectares.

The impact of imports and exports is taken into account. But only the human being is concerned with calculation. But other living things can also access these resources and consume them.

The available data and ecological footprint calculation methods vary by country and city and are ultimately summed together since they are converted into the same unit that is the global hectare, as detailed in Slate. Data from some countries are less complete than in other countries. And each country does not necessarily take into account the same factors.

The NGO relies primarily on data from the United Nations, then on the studies of newspapers and scientific journals. More than 5 400 data is analyzed. The study is read by other scientists. Thus, it remains serious even if the calculation method may seem somewhat random. And the primary goal of the NGO is to educate people about their consumption, with a study disseminated on a large scale.

http://www.usinenouvelle.com/article/co ... nt.N422382

article on slate.fr: http://www.slate.fr/story/105535/jour-d ... ode-calcul

......
What does the Day of Global Overflow mean?

This means that we have already consumed all that Earth produces for this year. We consume 1,6 planet instead of a planet. We take into account renewable resources, on the one hand biocapacity, that is to say, what is renewed every year, such as fish, food and pasture for meat. On the other hand, we calculate the ecological footprint, which is what is consumed, built or emitted into the atmosphere. Carbon emissions today represent 60% of the ecological footprint. They must be reduced to zero by 2050 so as not to enter a critical climate change.
.......

http://www.liberation.fr/planete/2016/0 ... it_1471039
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Re: The day of passing (Fumisterie Global Footprint Network)




by Remundo » 08/08/16, 23:01

yes it's more an indicator of biological renewal,

weighting on heaps of appearance: do not take more fish than the sea can produce, same for wood etc ...

it is therefore a very fragmentary indicator and seems to me completely decorrelated mining and energy extractions ...
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Re: The day of passing (Fumisterie Global Footprint Network)




by Christophe » 09/08/16, 02:51

Yes Remundo and that's what I said above last year: the day of overtaking on oil and gas (and many other natural resources ...) is ... the 1er January ...
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Re: The day of passing (Fumisterie Global Footprint Network)




by dede2002 » 18/09/16, 08:00

Remundo wrote:yes it's more an indicator of biological renewal,

weighting on heaps of appearance: do not take more fish than the sea can produce, same for wood etc ...

it is therefore a very fragmentary indicator and seems to me completely decorrelated mining and energy extractions ...


Hello Remundo, and everyone,

It is thanks to all this energy that we are able to take more than what the land and the sea can give, when we have solar-powered bulldozers we will be able to finish the work "with a clear conscience" ...

In a week, the Swiss will vote for or against the idea of ​​reducing the human footprint to "a planet", which would correspond to a "day of the overtaking" on December 31st.

We learn that the lifestyle of Switzerland requires 3 planets, but I think, hastily, that the majority of humans still have a lifestyle lower than "a planet". :?:

https://www.letemps.ch/opinions/2016/09 ... thropocene

https://www.admin.ch/ch/f/pore/vi/vis402t.html

http://www.lematin.ch/suisse/Economie-v ... y/20355098
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Re: The day of passing (Fumisterie Global Footprint Network)




by dede2002 » 26/09/16, 13:07

Here are the results: the Swiss reject the initiative to bring the lifestyle back to "one planet".
Surprise, the canton of Geneva has accepted the initiative!
Currently, the "day of the overrun", if everyone had the Swiss lifestyle, on average, would arrive at the end of April ... (assuming that the two calculations are based on the same units).

http://www.lematin.ch/suisse/Les-Suisse ... y/20546098
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Re: The day of passing (Fumisterie Global Footprint Network)




by Christophe » 02/08/17, 15:30

This year is today but it's still as smoky as calculation ... : Cheesy:

It is interesting to see the evolution of this day ... maybe in 20 years we will approach the January 1er? : Cheesy:

jour_depassement.jpg
day_dependement.jpg (23.84 Kio) Viewed 3404 times


http://www.lemonde.fr/planete/article/2 ... _3244.html
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Re: The day of passing (Fumisterie Global Footprint Network)




by Christophe » 03/08/17, 13:08

The evolution of the day of passing through another diagram:

Credit_Terre.png


Funny "peaks" ... anyone have an explanation?
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Re: The day of passing (Fumisterie Global Footprint Network)




by sen-no-sen » 03/08/17, 13:20

Christophe wrote:The evolution of the day of passing through another diagram:

Credit_Terre.png

Funny "peaks" ... anyone have an explanation?


Crises can be? 1973,1979,2008 ???
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"Engineering is sometimes about knowing when to stop" Charles De Gaulle.
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Re: The day of passing (Fumisterie Global Footprint Network)




by Christophe » 03/08/17, 13:56

Yes it sticks to the evolution of oil consumption: energies-fossil-nuclear / evolution-of-production-and-consumption-of-global-oil-t2761.html

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Afterwards I will have to explain to myself how (and especially why) the calculation takes into account the renewable nature of oil : Cheesy: : Cheesy:
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