Humans can’t count on rainforests to offset their carbon

March 5, 2020 by  
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Instead of absorbing carbon dioxide from the air, tropical rainforests could become a source of carbon in the atmosphere as soon as the next decade. Long appreciated as “carbon sinks,” those days will soon be over, according to a new study published in the journal Nature. “We’ve found that one of the most worrying impacts of climate change has already begun,” Simon Lewis, study author and plant ecologist at University of Leeds, told The Guardian . “This is decades ahead of even the most pessimistic climate models.” Researchers spent 30 years tracking 300,000 trees in African and Amazonian rainforests. Their work took them to remote sites, and even required a week in a dugout canoe traveling deep into the Democratic Republic of the Congo. The team tagged individual trees with aluminum nails, charting their height and diameter every few years and calculating the carbon stored in both the surviving trees and those that died. The Amazonian forests — which face higher temperatures and worse droughts — were weakening first, but the African forests weren’t far behind. The researchers based their projections that the forests will soon turn into carbon sources on a statistical model, their own observations and trends in emissions, rainfall and temperatures to predict how forests will store carbon in the near future. Carbon uptake by tropical forests peaked in the 1990s. Back then, the forests absorbed about 17% of the carbon dioxide humans generated. But droughts, deforestation and high temperatures have adversely effected these carbon sinks. By last decade, forests could only take about 6% of global emissions off our hands. “Humans have been lucky so far, as tropical forests are mopping up lots of our pollution , but they can’t keep doing that indefinitely,” Lewis said. “We need to curb fossil fuel emissions before the global carbon cycle starts working against us. The time for action is now.” + Nature Via The Guardian and Phys.org Image via Etienne Delorieux

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Humans can’t count on rainforests to offset their carbon

Sweden is on track to meet its 2030 renewable energy goals this year

July 9, 2018 by  
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Sweden’s ambitious goal to provide renewable and affordable energy by 2030 is expected to become reality a little ahead of schedule. The Swedish Wind Power Association (SWPA) says its members are on track to generate 18 terawatt-hours of electricity every year by the end of 2018, making it possible for the nation to reach its renewable energy goals 12 years early. In 2015, Sweden joined with 16 other world powers to develop the United Nations’ 2030 Agenda for Sustainable Development . The plan focused around four parts: humanitarian development, environmental sustainability , long-term economic planning and advancing peace. With this framework, Sweden developed a 17-part plan to end poverty, provide clean water and sanitation and combat global climate change. Related: Nearly all new US energy capacity came from solar and wind in early 2018 While many of the plans are still in progress, at least one could be achieved in 2018. Representing Sweden’s wind energy industry, the SWPA projects the number of wind turbines alone could provide clean and affordable power to the nation as soon as December. The organization says 3,681 wind turbines will be operational across the country by the final days of the year. This would fulfill two goals of the Swedish energy plan : ensure universal access to affordable, reliable and modern energy service and substantially increase the share of renewable energy in the global energy mix. If the energy industry hits the projections, the future is bright for the Nordic nation. The additional power boost comes as demand for energy access is set to spike. According to the International Energy Agency, electricity needs could jump by up to 37 percent worldwide over the next 22 years. To help developing nations answer their electricity needs, Sweden’s next major milestones are to double renewable energy efficiency rates, partner with other countries to improve renewable energy and supply energy to the world’s least developed nations and islands. Via Business Live and  Bloomberg Image via Timmy L.

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Sweden is on track to meet its 2030 renewable energy goals this year

Clement Briend Projects Digital Deities Onto Trees in Cambodia

November 29, 2012 by  
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Read the rest of Clement Briend Projects Digital Deities Onto Trees in Cambodia Permalink | Add to del.icio.us | digg Post tags: buddhas , Cambodia , cambodian trees , clement briend , deities , france , politics illuminations group , projections , spirits , tara , Trees

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Clement Briend Projects Digital Deities Onto Trees in Cambodia

Advances in Producing Hydrogen by Mimicry of Photosynthesis

February 20, 2011 by  
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Image: Hydrogen spectrum, cosmiccandace Last time we checked in on Thomas Mallouk’s work applying biomimicry to generate hydrogen , he was reporting about 0.3 percent efficiency. According to his projections, the proof-of-concept device for producing hydrogen using the same trick applied in plants for photosynthesis could eventually reach efficiencies of 10-15%, beating nature’s average of 1 to 3 percent.

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Advances in Producing Hydrogen by Mimicry of Photosynthesis

National Soda Tax Would Make Americans 4% Less Fat

July 9, 2010 by  
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Photo via City Pages The USDA has recently been delving into the potential benefits of enacting a tax on sugary beverages like sodas and fruit juices. Clearly, there’s plenty to debate about such a tax — whether it would raise soda prices enough to discourage consumption, whether it would unfairly impact the poor, how much revenue it would raise, and whether it would actually make anyone healthier.

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National Soda Tax Would Make Americans 4% Less Fat

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