Sunday, February 1, 2015
Phytoplankton absorb Carbon Dioxide and release Oxygen. They produce as much Oxygen as all the trees in the world, and they remove 3 billion tonnes of Carbon Dioxide every year. – SAHFOS
hytoplankton are microscopic algae found floating and drifting in the upper layer of the oceans. They perform the very essential task of preparing food for those organisms which don’t have the means to do it by themselves. Phytoplankton achieve this by following the process of photosynthesis, in which they utilize sunlight and carbon di oxide to create food for themselves and for other marine organisms as well.
Ever wondered what the consequences will be if there were no phytoplankton left on earth!
Friday, December 19, 2014
Green consumerism and ”Case Christmas”
by Krista Haapamäki
While (grocery) shopping, customers face several choices - of produce and products – which are more or less ethical. There's the regular product, the cheap product, the luxurious more expensive product, the ethical product (organic or Fair Trade, or both) and the product manufactured nearby. Which one to choose? Let's take ”Case Christmas”.
Christmas time is a holiday season when consumerism is almost unavoidable. Everything is consumed – food, presents and gift cards, festive clothes and decorations, and of course gift wrappings. Christmas and the tradition of exchanging presents place a huge demand on Earth's vital, limited resources. Christmas also depicts our generation, as consumers.
But: it does not have to be so. Christmas can be a wonderful opportunity to spend time with family and friends without all that consumerism. Or at least, the money could be used for a cause! Small choices in a better direction, every now and then, can make a difference on a larger scale; choices such as buying less or buying better (ethical, organic or sturdier). After the present, another choice concerns gift wrappings – one could try e.g. not to pack their gifts at all, avoid individual wrappings, prefer recycled gift paper or even utilize newspaper.
To provide alternative Christmas choices and raise awareness among consumers, an event ”Vihreä Joulu”, ”Green Christmas” was organized on 13th of November in Tampere Hall by TAMK’s Proakatemia entrepreneurship students. The idea, or motto, behind the happening is ”You're going to buy anyway, so choose better” - this is a great idea!
The event Vihreä joulu was supported by Ruohonjuuri, Cabassi (bag, in the picture), and Ekona.
In the event there were approximately 15 stalls which were full of recycled products, organic products or “green” cosmetics. (e.g. no synthetic ingredients in the D-vitamin tablets). Some of the products were recycled for example from bicycles' inner tires or silver spoons (see the picture, Retonki, SusannaN Design). The jewelry made from the tires was mesmerizingly beautiful and the silver spoon jewelry was jaw-droppingly delicate and luxurious.
“Green Christmas” is an excellent pioneer idea. One way to ”lighten the load” is truly opting for better products! Yet even better is to opt for services such as a massage gift card, a movie ticket, or donate something to charitable organizations. The best choice is not to buy anything, and just enjoy the company of family and friends during the holidays.
Anyhow the goal is to buy less, or at least buy better – when possible. Whether “better” means domestic or Fair Trade products, is up to You!
Monday, December 8, 2014
Recycling on construction sites in Finland
By: Oskari Mäkelä
Construction sites are a very common view everywhere. There is always a demand for building new or renovating old ones. The waste materials that are created in these processes should always be recycled, yet this is not always done. On every construction site there should be separate collection points at least for wood, metal, plastics, glass, and hazardous waste.
Green building: goodbye to the concrete jungles!
By Paola Israde Burrola
Nowadays becoming “green” has gained popularity among designers and builders, since the needs of the housing market are continuously changing. Sustainable design covers a building’s impacts holistically, from the planning process to the deconstruction at the end of the building’s useful life. It is necessary to consider all the impacts a construction may bring, since wrong planning might affect the tenant’s health as well as the surroundings: ecosystems, air quality, animals and plants among others.
The aim of a sustainable construction project is to enhance the quality of life for the building occupants. People were not designed to live in an asphalt jungle, surrounded by traffic jams and having to breathe polluted air. It is necessary to implement projects, which allow public encounters with convenient access to public transportation, and natural spaces that promote walking instead of driving. Simply by incorporating natural features such as windows that permits natural light into the building or by adding some plants, the occupants’ experience can be transformed from just living in the building to enjoying their lives.
And what else makes this kind of building so attractive? It’s energy use. High-efficiency buildings use natural means for power generation, for instance solar and wind power, and they include as well the use of some principles which tends towards minimum performance standards such as:
- 1. The use of materials with efficient thermal mass and insulation: materials that readily absorb, store and release heat, such as concrete, bricks, stone and masonry.
- 2. Orientation of the building to take advantage of natural shading and solar heat gain.
- 3. A compact design, which can optimize the use of the heat trapped within the building.
- 4. A highly sealed and insulated building in conjunction with a mechanical ventilation system incorporating heat recovery.
However, what is usually thought about green building is that by implementing this kind of practices, the cost of the project will increase and result in more work. This misconception is far from reality. In terms of the construction process, sustainable practices are not very different from traditional procedures, but they result in a different and a more efficient construction. Green projects are demonstrating that many of the fundamental principles of sustainable building can be applied without increasing the project price and they also allow savings in terms of operating costs.
One model of a green building project is actually very near Tampere. The Vuores area is a typical ‘greenfield’ development in a woodland area to the south of the city of Tampere, which by 2020 will become an ECOCITY. This project is trying to incorporate all the fundamentals of green building construction with an optimum urban structure that takes into account the conservation of the natural environment, social issues, an efficient public transport system and of course, for the energy supply the use of renewable energies.
Image: Kubina, J. 2007. Technische Universität Darmstadt - Solar Decathlon 2007. Solar energy, Wikipedia.last modified on 10 november 2014. Accessed 10/11/2014. http://upload.wikimedia.org/wikipedia/commons/b/ba/Technische_Universit%C3%A4t_Darmstadt_-_Solar_Decathlon_2007.jpg
Letcher, T. 2008. Future energy: Improvised, sustainable and clean options for our planet. China: Elsevier.
Yudelson, J. 2009. Green building through integrated design. USA: Mc Graw hill.
Bose, R. 2009. Energy efficient cities. USA: The World Bank.