Planting tiny urban forests can boost biodiversity and fight climate change

August 7, 2020 by  
Filed under Business, Eco, Green

Comments Off on Planting tiny urban forests can boost biodiversity and fight climate change

Planting tiny urban forests can boost biodiversity and fight climate change Alex Thornton Fri, 08/07/2020 – 00:30 How much space do you think you need to grow a forest? If your answer is bigger than a couple of tennis courts, think again. Miniature forests are springing up on patches of land in urban areas around the world, often planted by local community groups  using a method inspired by Japanese temples. The idea is simple — take brownfield sites, plant them densely with a wide variety of native seedlings and let them grow with minimal intervention. The result, according to the method’s proponents , is complex ecosystems perfectly suited to local conditions that improve biodiversity, grow quickly and absorb more carbon dioxide. The Miyawaki method The method is based on the work of Japanese botanist Akira Miyawaki . He found that protected areas around temples, shrines and cemeteries in Japan contained a huge variety of native vegetation that co-existed to produce resilient and diverse ecosystems. This contrasted with the conifer forests — non-indigenous trees grown for timber — that dominated the landscape. Miyawaki forests can grow into mature ecosystems in just 20 years — astonishingly fast when compared to the 200 years it can take a forest to regenerate on its own. His work developed into the Miyawaki method — an approach that prioritizes the natural development of forests using native species. Miyawaki forests can grow into mature ecosystems in just 20 years — astonishingly fast when compared to the 200 years it can take a forest to regenerate on its own. They act as oases for biodiversity, supporting up to 20 times as many species as non-native, managed forests. Local pollinators such as butterflies and bees, beetles, snails and amphibians are among the animals that thrive with a greater diversity of food and shelter. Greening urban spaces worldwide The popularity of Miyawaki forests is growing, with initiatives in India , the Amazon and Europe. Projects such as Urban Forests in Belgium and France, and Tiny Forest in the Netherlands, are bringing together volunteers to transform small patches of wasteland. Urban forests bring many benefits to communities beyond their impact on biodiversity. Green spaces can help to improve people’s mental health , reduce the harmful effects of air pollution , and even counter the phenomenon of heat islands in cities, where expanses of concrete and asphalt raise temperatures unnaturally high. Carbon sinks The potential for helping to combat climate change makes Miyawaki forests a particularly attractive option for many environmentalists. Reforestation is a key part of strategies to limit the rise in global temperatures to 1.5 degrees Celsius, with initiatives such as the Bonn Challenge , Trillion Trees Vision and the World Economic Forum’s 1t.org project setting ambitious targets. It’s estimated that new or restored forests could remove up to 10 gigatons of carbon dioxide equivalent by 2050. If you have a patch of wasteland in your local community that is sitting idle, a Miyawaki forest could be one way of doing your bit to help the environment. However, not all forests are equally effective in sequestering carbon. Mature forests of native trees soak up much more carbon dioxide than the monoculture plantations that make up many reforestation projects. As scientists learn more about the role of other factors, such as carbon in the soil , it is increasingly clear that planting the right kind of trees matters as much as the number. Conservation groups stress that Miyawaki forests should not be seen as an alternative to protecting existing native forests. Small, unconnected wooded areas never can replace the large tracts of forest that are vital to so many species — and that remain under threat from commercial plantations and slash-and-burn farming. But if you have a patch of wasteland in your local community that is sitting idle, a Miyawaki forest could be one way of doing your bit to help the environment. Pull Quote Miyawaki forests can grow into mature ecosystems in just 20 years — astonishingly fast when compared to the 200 years it can take a forest to regenerate on its own. If you have a patch of wasteland in your local community that is sitting idle, a Miyawaki forest could be one way of doing your bit to help the environment. Topics Forestry Cities World Economic Forum Featured in featured block (1 article with image touted on the front page or elsewhere) Off Duration 0 Sponsored Article Off An urban forest in Shirakawa-Go, Japan. Photo by Rap Dela Rea on Unsplash. Close Authorship

See more here:
Planting tiny urban forests can boost biodiversity and fight climate change

Behind Microsoft’s bold plan to build social equity into clean energy buying

August 6, 2020 by  
Filed under Business, Eco, Green

Comments Off on Behind Microsoft’s bold plan to build social equity into clean energy buying

Behind Microsoft’s bold plan to build social equity into clean energy buying Heather Clancy Thu, 08/06/2020 – 00:45 There were plenty of juicy news tidbits in Microsoft’s recent progress report about its goal to become carbon negative over the next decade. But its new goal to link at least 500 megawatts of forthcoming solar energy contracts to environmental justice considerations is bold for many reasons.  For context, the total pledge amounts to about a quarter of the capacity that Microsoft already has signed (1.9 gigawatts) in solar and wind contracts. This is the largest commitment it has made to a single portfolio investment, so it isn’t some side project. Nor is this a reaction to the nationwide protests triggered by the death of George Floyd this spring — the active planning has been under way since December.  “We spend a lot of time talking about the energy transition needed if our society is going to transition to a net-zero economy by 2050,” Microsoft’s environment chief, Lucas Joppa, told me. “Microsoft’s position is that the transition has to be an inclusive and just one.” The arrangement, with project financer, investor and developer Sol Systems , will prioritize opportunities and investments in communities “disproportionately affected by environmental challenges.” What does that mean more specifically?  The installations could be in urban neighborhoods that haven’t typically had access to economically priced clean energy resources or that historically have been disproportionately affected by pollution. But they also might be sited in rural communities that have been negatively affected by job losses triggered by the closure of fossil fuels plants or extraction operations, notes Sol Systems co-founder and CEO Yuri Horwitz. “We think it’s equally important that we engage all segments of society,” he said.  As anyone responsible for renewable energy knows, it historically has been very difficult to build metrics around the social impacts of projects. The arrangement also will prioritize buying from minority and women-owned businesses. And it will provide at least $50 million in the form of grants to support educational programs, career training, habitat restoration and initiatives that provide low-income communities with access to clean energy and energy efficiency programs. “Solar is, and should be, an economic engine for everyone,” Horwitz added. To make this work, the two companies created a framework power purchase agreement to cover individual projects as they are identified with the intention of getting them validated and approved more quickly. Among the terms: A certain portion of the revenue that’s generated will be reinvested back into the community where a solar farm is located. “You can do this at scale and at a price point that is economically doable,” Joppa said. Microsoft will use third-party evaluators to help quantify and document both the social and environmental outcomes.  Lily Donge, a former principal in the energy practice at Rocky Mountain Institute and now director of corporate innovation for communities with Groundswell, believes Microsoft’s deal with Sol Systems is a sign of things to come. “We do not know whether the community process will be equitable, transparent or consultative,” she wrote on the community solar organization’s blog. “But this is a signal that a giant tech company is willing to understand the demands of the community, under-served customers and the public at large.” As anyone responsible for renewable energy knows, it historically has been very difficult to build metrics around the social impacts of projects, but Sol Systems has been focusing on methodologies for doing so for the past 12 years — it already has about 800 MW of similar projects in its portfolio , including deals it has done for Amazon and Under Armour . The latter project was built in Maryland on land that couldn’t be used for residential development; it will contribute about $1.4 million in tax revenue to the local community. Another Sol Systems ally is Nationwide Insurance, its financing partner . This isn’t the only relationship Microsoft will use to procure energy in the future, so it will be important to watch how that consideration bleeds into other contracts. I’ll definitely be asking. You should do so, too. This article first appeared in GreenBiz’s weekly newsletter, VERGE Weekly, running Wednesdays. Subscribe  here . Follow me on Twitter: @greentechlady. Pull Quote As anyone responsible for renewable energy knows, it historically has been very difficult to build metrics around the social impacts of projects. Topics Social Justice Renewable Energy Corporate Procurement Featured Column Practical Magic Featured in featured block (1 article with image touted on the front page or elsewhere) On Duration 0 Sponsored Article Off Sol’s 196-kilowatt solar installation at Christ Church apartments, a low-to-moderate income senior living facility located on the Baltimore Harbor.  Courtesy of Sol Systems Close Authorship

More:
Behind Microsoft’s bold plan to build social equity into clean energy buying

Astronomers are baffled by a newly-discovered galaxy that lacks dark matter

March 29, 2018 by  
Filed under Green

Comments Off on Astronomers are baffled by a newly-discovered galaxy that lacks dark matter

For the first time ever, scientists have identified a galaxy , NGC1052-DF2, that seems to lack the presence of dark matter.  For decades, scientists have believed that dark matter is a major aspect of any galaxy, which makes this discovery completely baffling. In an odd way, the new galaxy’s lack of dark matter may serve as evidence for the existence of it by demonstrating that there is much astronomers do not understand about such vast low-density galaxies. Although scientists have yet to directly observe dark matter, they believe it is out there due to the unusual motion of galaxies, which move as if under a greater gravitational force than that from the presence of regular matter. “These ultra-diffuse galaxies have a huge variety of properties,” study lead author Pieter van Dokkum told Gizmodo . “Some have a lot of dark matter , and some have no dark matter. There’s such an enormous range.” These observations have led scientists to believe that the universe may contain six times as much dark matter as ordinary matter . In a new study published in Nature , astronomers documented their observation that NGC1052-DF2 did not seem to rotate at all, indicating a lack of dark matter. “We could only derive an upper bound to the measured motion because it’s moving so slowly that our instrument couldn’t detect it,” said van Dokkum. Related: Scientists capture first ever image of dark matter web that connects galaxies The team also recently discovered a Dragonfly 44 with a similar structure to NGC1052-DF2, though its rotation suggests that the galaxy is composed of more than 99 percent dark matter. These observations were made possible by the Dragonfly Telephoto Array, a powerful telescope that shines a light on the universe’s secrets. This is exactly the sort of thing the Dragonfly instrument excels at discovering,” astrophysicist Sarah Tuttle told Gizmodo , “and confirming a low-mass galaxy without dark matter is an important step in understanding both galaxy formation and evolution, as well as cosmology.” Via Gizmodo Images via  Pieter van Dokkum and PBS

Originally posted here:
Astronomers are baffled by a newly-discovered galaxy that lacks dark matter

Bad Behavior has blocked 5222 access attempts in the last 7 days.