Solar Radiation

ashdenizen: when science meets art … successfully

Kellie Payne has attended numerous ‘art and science’ events, but in this guest blog she argues that last weekend’s day-long symposiumRising To The Climate Challenge: Artists and Scientists Imagine Tomorrow’s World was particularly successful.

The Tate had paired with the Royal Society to present an impressive line-up of speakers, including artists Lucy Orta, Tomás Saraceno and the eminent land artist Agnes Denes. But its success could be attributed to another reason.

Kellie Payne writes:

Rather than framing the question as: ‘how can artists help scientists communicate climate change?’, last Saturday’s symposium Rising To The Climate Challenge took the view that art and science had two very different perspectives to offer and much could come from their collaborations. Art’s role isn’t simply to reformulate and appealingly package the scientific messages; instead it has a more fundamental exploratory and imaginative role. 

The climate science programme largely reflected the Royal Society’s priorities and included, along with the expected division of adaptation and mitigation a third one, geo-engineering. However, oceanographer and earth scientist Corinne Le Quéré , who introduced the topic, revealed that she was stuck with presenting it because none of the other speakers wanted it. Professor Le Quéré gave a well-balanced presentation comparing the various options’ effectiveness (predicted ˚C temperature change) versus the level of risk.

With more controversial options such as the frightening volcanic method, where artificial volcanoes are created in the atmosphere to reflect and reduce solar radiation, she demonstrated that even this was only a temporary fix. The volcanoes would need to continually be created because as soon as they ceased, CO2 levels in the atmosphere would rapidly return to pre-volcanic levels. A less risky option, managing earth radiation through afforestation was shown to be less effective, with a possible decrease in warming projected at only 1ËšC.

Agnes Denes’ land art was incorporated into the topic of geo-engineering because her large-scale works often drastically alter the landscape. In Finland she created Tree Mountain- A Living Time Capsule, building a conical mountain and planting it with 11,000 trees, and planting and harvesting a wheat field in central Manhattan (Wheatfield: A Confrontation). During her slide show, Denes explained that she likes to investigate the paradoxes of human existence: logic, evolution, time, sound, etc. and believes that by shaping and structuring the future we can control our own evolution.

Tomás Saraceno presented with an infectious energy, bursting with novel, if impractical ideas that included his floating ecosystems.  Saraceno makes bold and imaginative attempts to stretch the boundaries of our conceptions of space and gravity with his experimental floating pods. His presentation was paired nicely with Oxford social scientist Steve Rayner’s on adaptation. He focused on cities of the future and the importance of instituting greater flexibility within existing infrastructures in order to cope with future climate events such as extreme flooding. He admires Saraceno’s work, in particular his innovation with new materials, shapes, and possibilities of new patterns of organisation.

Rayner highlighted three typical art/science interactions. The first was demonstrated by a photograph of a diseased liver cell and represented the mode of seeing beauty in the scientific. The second was art’s influence on science (mainly through science fiction such as HG Wells and Jules Verne), the model of artists stimulating scientists with their work leading to new ideas and discourses. The third – which Rayner thought the most compelling – were the interactions between scientists and artists that occur when artists ‘do science through art’. Essentially, where the borders between the two are eliminated and artists employ scientific methodology in their creations, as demonstrated in Saraceno’s work.

The collaboration between scientific institutions and artists was illustrated in a discussion between the Natural History Museum’sRobert Bloomfield and artist Lucy Orta , whose upcoming exhibition at the Jerwood Gallery Perpetual Amazonia is extensively researched using the NHM’s entomology, botany and palaeontology collections. The exhibition will also be informed by Lucy and her partner Jorge’s expedition to the Peru with Cape Farewell in 2009.  Bloomfield specialises in biodiversity and stressed the importance of the interrelations between climate change and biodiversity loss and ecosystem services.

The event was recorded. Podcasts will be available soon on the Tate website.

via ashdenizen: when science meets art … successfully.

Prague’s National Theatre Expands Solar Project

Reprinted from Prague Daily Monitor: “National Theatre to have second solar plant” by Pavel Baroch, October 8, 2009

Prague – The National Theatre will have its second solar power station. After dark panels covered the roof of its operational building last year, technicians are now installing photovoltaic modules on top of the Nová scéna building.

“The power station could start operating already in the middle of November,” Miroslav Ružicka, deputy technical director at the theatre, told Aktuálne.cz.

The National Theatre is therefore conforming its dominant position in electricity production from solar radiation in Prague – it has the biggest solar power station in the capital city.

“The objective is to reduce energy costs in all National Theatre buildings in the long run,” said Ružicka. The solar power stations come as part of an extensive environmental project that the theatre management launched a few years ago.

Dozens of millions of crowns invested in making the theatre and auxiliary facilities “green” bear fruit already. According to the plan, the theatre was to save more than CZK 4 million just last year, but the actual saving was CZK 2 million higher.

Besides the photovoltaic power station, another contributor to the cost cuts was modern equipment hidden on the bottom floors of the historical building. The theatre uses for example waste heat, which brings savings in the order of thousands of crowns every day. The project counts on total savings of nearly CZK 50 million in ten years.

The solar power station on the roof of Nová scéna is bigger and more efficient than the “old” photovoltaic panels on the operational building. What they have in common is that both roofs needed new hydro insulation, so besides installing solar panels, workers will also seal the roof.

“We killed two birds with one stone,” said Ružicka. “The option involving photovoltaic modules is more expensive, but a mere insulation foil does not make any money.”

The theatre uses the savings achieved to repay the investment, and will even make money on it after some time. Moreover, the method chosen makes it possible to improve energy efficiency, and therefore to reduce emissions.

Last year, the more economical operation of the theatre reduced carbon dioxide emissions by more than a thousand tonnes. To give a comparison: every Czech releases about 12 tonnes of CO2 a year.

The second photovoltaic power station at the National Theatre will save a further 25 tonnes, and generate electricity that would suffice for 7-8 households that do not use electricity for heating.

The guaranteed lifespan of the power station, which cost roughly CZK 8 million including the hydro insulation, is thirty years.

“The return on investment is fifteen years,” said Ružicka. The theatre management plan to build another solar power station on the roof of its warehouse and other environmental projects, he added.

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