Is online shopping sustainable?

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I personally considered Online shopping to be very sustainable. Saving a trip to the store and getting some serious discount was the highlight for online shoppers. I stopped buying online lately due bad experience with the quality of the product but I always thought that at least it saves you time via e-commerce.

But what about the emissions from fleets of delivery vehicles bringing orders to houses? Delivery trucks also contribute substantially to the burden of fine particulate matter, known as PM2.5, in the air, which is associated with many effects on human health. Especially when the product is returned (which happens in great number) there is likely to be more trips from the firm’s driver and not to mention, sometimes you are not at home and they have to return to your house again.

An increase in the number of home shopping purchases increases travel time, traffic delays, and vehicle emissions of the transportation network as a whole, the researchers say. While some previous studies suggest that e-commerce is associated with lower carbon emissions than traditional retail, other researchers have warned of a “rebound effect,” which occurs when gains in efficiency merely stimulate new consumption. Something similar may be going on in Newark, the results suggest.

But a recent study in Newark, Delaware suggests that the knock-on effects of online shopping may worsen traffic congestion and transport-related carbon emissions.Researchers at the University of Delaware conducted a survey of downtown Newark residents’ shopping habits and preferences and used the responses to calculate the quantity of goods purchased through home shopping.They also got information from delivery companies about the number of trucks on the road and the number of packages per truck, and used this to determine how many delivery trucks are required to distribute home shopping purchases.Finally, the researchers used transportation simulation software and data from local transportation authorities to determine the effect of delivery trucks on the transportation network, focusing on an area of downtown Newark that includes a portion of the university’s campus.They conducted similar analyses in 2001, at the dawn of the online shopping era, and again in 2008. They reported their results in a recent paper in the International Journal of Sustainable Development & World Ecology.

Read this journal to know more about the ill effects of Online shopping.

 

Source: Laghaei J. et al. “Impacts of home shopping on vehicle operations and greenhouse gas emissions: multi-year regional study.” International Journal of Sustainable Development & World Ecology

meet NOOR, the largest concentrating solar power plant on Earth

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Two weeks ago, the moroccan King Mohammed VI opened the biggest solar power plant on earth: a 3500 football-field area covered with solar power plants called Noor (arabic for light).

With a huge investment of about 3,9 billion dollars the moroccan government build up this huge plant, which is so special because of its moving mirrors, that heat up liquid salt up to 400 °C which then power a steam turbine to create energy. The most awesome feature of this kind of technique is that this heat can be stored up to 8 hours and produce energy also during nighttime. The overall power capacity of the plant is 580 MW, but it wont finish here, up to 2020 Morocco wants to produce up to 2000MW of electric power coming from solar energy.

Morocco is with is 3000 hours of sunlight annually a perfect place for this kind of energy production. The fact that Morocco has to import nearly 97 % of its energy consumption makes this kind of investment also a big step of the countries energy independence.

Have some nice pics here:

“M’illumino di meno” day

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Today an article written by our fellow RESD student Ruggiero Rippo! Enjoy it as much as we do!

This year on the 19th of February all of us can make a big difference. On this day the

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©RAI 2016

largest broadcasting initiative takes place, to raise awareness about energy consumption and sustainable mobility. The event, called “M’illumino di meno” (“I enlighten myself less”), is at its 12th edition and speaks to all of us: citizens, private associations and public institutions. The campaign is supported nation wide and on a European level by different public authorities, such as the Presidency of the Italian Republic, the Italian Senate and the Chamber of Deputies, and the European Parliament. Participating is very easy. Just take some simple actions that affect our daily routine: turn off all the unnecessary lights, ride the bike on your way to work or to the university, minimize the use of electric appliances. Basically, have a zero energy impact for one single day! The people involved in the project have achieved sensational goals through the years; for example: they organized concerts where the spectators cycle to produce electricity; they managed to “switch off” the main monuments in our cities like the Eiffel Tower in Paris or the Coliseum in Rome. Even Hans-Gert Pöttering, the President of the European Parliament in 2008, declared that “the event has a symbolic value with a tangible effect”. In fact, even if the event has a short length, it achieved to drastically reduce the energy waste. In 2007 and 2008 the demand of energy, few minutes after the event has started, was respectively 300 MW and 400 MW lower than usual. This is a huge amount of energy saved! Therefore, the possibility to make a difference, even if just for one day, is concrete. As the slogan of the campaign recites: “Sol Omnia regit”, “Everything depends on the sun”, we are all summoned to a conscious use of our resources, starting with changing our habits.

 

For more information just follow the link : http://caterpillar.blog.rai.it/milluminodimeno

Thanks and big thumbs up to Ruggiero Rippo for your partecipation on SteamGreen!