Building integrated solar panels from Dubai produce clean energy and color

October 31, 2017 by  
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The United States could obtain 40 percent of its energy solely from rooftop solar (with sufficient political will). But what if solar panels could also boost architectural aesthetics? Dubai -based Emirates Insolaire hoped to do just that with their Kromatix technology, providing an alternative to the blue or black panels that adorn many roofs. Plus, their solar products aren’t limited to rooftops — they can also be integrated in balconies or facades. Emirates Insolaire, a joint venture of Dubai Investments PJSC and SwissINSO , is changing our vision of solar with their Kromatix technology, developed with the Swiss Federal Institute of Technology . Emirates Insolaire offers Kromatix solar glass in gold, green, or terracotta, with an opaque finish that hides the power-generating technology inside. Solar transmittance varies among colors, but Emirates Insolaire said it is always greater than 85 percent. They also offer Kromatix modules manufactured with their solar glass that have an average efficiency of above 15 percent. Related: Discreet new SolarSkin panels completely blend in with their environment The company doesn’t use pigments to color their solar glass, but rather “a complex nano-scale multilayer deposition by plasma process,” and say the color will remain stable as time passes. According to Emirates Insolaire’s website, “The colored appearance results from the reflection of a narrow spectral band in the visible part of the solar spectrum. The rest of the solar radiation is transmitted to the solar panel to be converted into energy .” The thickness of the solar glass is between 3.2 and eight millimeters. SwissINSO says the Kromatix colored solar panels can be integrated on facades and rooftops of all sorts of structures, from private homes to high-rise buildings. Electrek also reported the Kromatix products are affordable; they estimated a 5.5 kilowatt solar system would cost between $1,300 and $1,500 per home. They said not counting tax credits or incentives, the system would cover the cost of coloring in a little over one and a half years. Emirates Insolaire’s products have been installed across Europe, including at this school in Copenhagen . + Emirates Insolaire Via Electrek Images via Emirates Insolaire

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Building integrated solar panels from Dubai produce clean energy and color

73 million trees to be planted in largest reforestation project ever

October 31, 2017 by  
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Conservation International aims to plant 73 million trees in the Brazilian Amazon as part of the largest ever undertaking of its kind. In what is being called the “arc of deforestation” in the Brazilian states of Amazonas, Acre, Pará, and Rondônia, as well as throughout the Xingu watershed, trees will be planted as part of a project that, in the short-term, aims to restore 70,000 acres of tropical forest. “If the world is to hit the 1.2°C or 2°C [degrees of warming] target that we all agreed to in Paris, then protecting tropical forests in particular has to be a big part of that,” said M. Sanjayan, CEO of Conservation International, in an interview with Fast Company . “It’s not just the trees that matter, but what kind of trees ,” said Sanjayan. “If you’re really thinking about getting carbon dioxide out of atmosphere, then tropical forests are the ones that end up mattering the most.” Ceasing deforestation would allow for the absorption of 37 percent of the world’s annual carbon emissions yet scientists worry that 20 percent of the Amazon may be deforested in the next two decades, in addition to the 20 percent that was deforested in the past 40 years. To combat this rapid pace of destruction, Conservation International is utilizing new, efficient planting techniques that could be applied worldwide. “This is not a stunt,” said Sanjayan. “It is a carefully controlled experiment to literally figure out how to do tropical restoration at scale, so that people can replicate it and we can drive the costs down dramatically.” Related: Hurricane Maria ravaged the only tropical rainforest in the United States The planting method used in the project is known as muvuca , which is a Portuguese word to describe many people in a small place. In  muvuca, hundreds of native tree seeds of various species are spread over every inch of deforested land. Natural selection then allows the most suited to survive and thrive. A 2014 study from the Food and Agriculture Organization and Biodiversity International found that more than 90 percent of native tree species planted using the  muvuca method germinate and are well suited to survive drought conditions for up to six months. “With plant-by-plant reforestation techniques, you get a typical density of about 160 plants per hectare,” said Rodrigo Medeiros, Conservation International’s vice president of the Brazil program and project lead, according to Fast Company . “With muvuca, the initial outcome is 2,500 species per hectare. And after 10 years, you can reach 5,000 trees per hectare. It’s much more diverse, much more dense, and less expensive than traditional techniques.” Via Fast Company Images via Depositphotos (1)

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73 million trees to be planted in largest reforestation project ever

Climate change and volcanic eruptions could lead to years without summer

October 31, 2017 by  
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Scientists warn that if climate change continues at its current pace, oceans may lose their ability to reduce atmospheric effects from volcanic sulfur and aerosols as they have done in the past. This means that volcanic eruptions in the future may lead to “years without summer,” as occurred in 1815 after the April eruption of Mount Tambora in Indonesia . New research led by the National Center for Atmospheric Research (NCAR) in the US both confirms that specific eruption’s role in altering the global climate and the role that future eruptions might play if the ocean’s temperature continues to be affected by melting sea ice and rising global temperatures. The researchers used data from Community Earth System Model’s (CESM) Last Millennium Ensemble Project, which provides simulations of Earth’s climate based on the geological record from 850 through 2005, to determine that the Mount Tambora eruption caused a notable cooling event on the global climate. Sulfur dioxide sent into the atmosphere became sulfate particles known as aerosols and reflected light away from the Earth. This resulted in a so-called “year without summer,” in which crops across North America and Europe suffered tremendous losses due to cold temperatures and blocked sunlight. Related: Two giant volcanic eruptions formed Yellowstone’s iconic caldera The oceans played an important role in returning the climate to relative normalcy through a process in which the colder water of the ocean sinks while warmer water rises to the surface, helping to warm the surrounding land and atmosphere . However, due to changing ocean temperatures resulting from climate change, if an eruption similar to Mount Tambora were to occur in 2085, the ocean would be less able to bring about climate stabilization. Study author Otto-Bliesner wrote, “The response of the climate system to the 1815 eruption of Indonesia’s Mount Tambora gives us a perspective on potential surprises for the future, but with the twist that our climate system may respond much differently”. + Nature Communications Via Alphr Images via Depositphotos (1)

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Climate change and volcanic eruptions could lead to years without summer

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