Contesto generale La novella di Cisti il fornaio è la seconda della sesta giornata del Decameron di Boccaccio. In questa giornata, tutte le novelle hanno un tema comune: il modo elegante e intelligente (con arte e garbo) con cui i personaggi riescono a rispondere a situazioni difficili, spesso grazie all’arguzia, alla prontezza di spirito o all’uso sapiente delle parole (i cosiddetti “motti”). La narratrice è Pampinea, una delle sette giovani protagoniste del Decameron, che introduce la novella con una riflessione: a volte la natura e la fortuna premiano persone di umili origini, dotandole di un'anima nobile e virtuosa, proprio come accade a Cisti. Trama in breve Cisti è un fornaio fiorentino, quindi un uomo del popolo, ma di grande eleganza, educazione e intelligenza. Egli possiede un ottimo vino bianco, che desidera offrire a Geri Spina, un nobile fiorentino che ogni giorno passa davanti alla sua bottega insieme agli ambasciatori di papa Bonifacio VIII. Cisti però sa che, ...
The environmental issues are generated by conflictual relationship between human activities and ecosystem.
Since ancient times, man has started to influence environment according to his needs, exploiting most of environmental resources.
Starting from 18th century with Industrial revolution, technological progress and population growth accelerated this phenomenon, putting the environment and ourselves at risk.
The most serious environmental issues are global warming, sour rain, pollution, greenhouse effect and ozone hole.
These problems lead to climate changes and disasters like earthquake, hurricane, tornado and more other.
The greenhouse effect is a natural phenomeno that if there isn't it, the Earth will be cold.
But human activities release some gas (greenhouse gas like carbon dioxide) in the atmosphere to the point that lead to global warming.
Moreover, the combustion of fossil fuels as coal, methane, petroleum determines the production of other greenhouse gas.
Another global environmental issues is ozone hole: the reduction of the thin layer of ozone (carbon trioxide) in atmosphere because of presence of "clorofluorocarburi".
This thinning weakens the ability to filter ultraviolet sunrays, which are dangerous for our life.
The combustion of fossil fuels is also a cause of sour rains.
Sour rain is generated by presence of both excessive quantity of sulfur dioxide and nitrogen oxide in the atmosphere and rain water.
Sour rains bring pollutant substances to the soil, ruining several habitats and limestone building.
Unfortunately, at the moment, these problems haven't a definitive and certain solutions.
It's possible to give some information and suggest about our behaviour towards our planet.
We can use renewable resources in order to reduce fossil fuels and greenhouse gas.
In fact, some European countries like Denmark and Sweden cut down on CO2 emissions.
In Copenhagen there are along the pier some "paleoliche" on the sea, in order to convert wind current and tides to electricity. Then, green spaces are very well cared to the point that in every corner there are parks, plants and flowerbeds full of colorful flowers.
In Sweden there are bus powered by batteries or biodiesel.
I think the environmental problem requires a lot of global solutions.
In my little one, I try to reduce electricity and energy waste by turning off the lights of my room or electric devices if I don't use them.
Then, I employ LED bulbs because they use up to 80% less electricity.
I buy reusable objects to limit the waste accumulation in dumps and avoid, if possible, plastic objects.
I separate collection of different kinds of household waste.
Moreover, when the destination of a building or shop is near, I go on foot or by bike.
I hope people can contribute to help our planet because it is so beautiful and magnificent to be destroyed.
It's time to get back our future!

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