Over 100 cities around the globe run mostly on renewable energy

February 27, 2018 by  
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A new report shows that over 100 cities around the world are running on predominantly clean energy . That figure is up from just 40 in 2015, and it shows that more and more cities – from Seattle, Washington to Inje, South Korea – are ditching fossil fuels and turning to renewables than ever before. According to a report from CDP , more than 100 cities across the globe get 70% or more of their energy from wind, solar, hydro and biomass. Some cities are even getting 100% of their energy from renewable sources, like Burlington, Vermont, which became the first US city to move completely to renewables. 58 other cities in the US have joined the growing #WeAreStillIn movement and pledged to transition completely to renewables. Related: Burlington, Vermont Now Runs on 100% Renewable Energy At the same time, electricity demand is decreasing. Thanks to a shift in heavy industry moving outside of the US, more efficient lights and appliances , and more on-site power, people in the US are using less electricity. As a result, for the first time in a century, electricity demand is stagnant – and utilities are beginning to panic. Via Vox and Earther Images via Deposit Photos ( 1 , 2 )

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Over 100 cities around the globe run mostly on renewable energy

MIT’s thermal resonator generates power "out of what seems like nothing"

February 27, 2018 by  
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A brand new power-generating system from Massachusetts Institute of Technology (MIT) researchers creates energy “out of what seems like nothing,” according to chemical engineering professor Michael Strano in a statement . Their system, which they’re calling a thermal resonator, harnesses daily swings in ambient temperature , potentially enabling remote sensing systems to operate for years — no batteries or other power sources required. Nine MIT scientists from the chemical engineering department envisioned a new way to transform temperature changes into electric power. Their system doesn’t need two different temperature inputs simultaneously; it simply draws on fluctuations in the temperature of the air. Strano said, “We basically invented this concept out of whole cloth. We’ve built the first thermal resonator. It’s something that can sit on a desk and generate energy out of what seems like nothing. We are surrounded by temperature fluctuations of all different frequencies all of the time. These are an untapped source of energy.” Related: MIT battery that inhales and exhales air can store power for months MIT said the power levels the thermal resonator can generate are modest at this point, but the system’s advantage is that it isn’t affected at all by short-term changes in environmental conditions, and doesn’t require direct sunlight. It could generate energy in oft-unused spaces like underneath solar panels . The researchers say their thermal resonator could even help solar panels be more efficient as it could draw away waste heat . The thermal resonator was tested in ambient air, but MIT said if the researchers tuned the properties of the material used, the system could harvest other temperature cycles, such as those of machinery in industrial facilities or even the on and off cycling of refrigerator motors. The scientists created what MIT described as a “carefully tailored combination of materials” for their work, including metal foam, graphene , and the phase-change material octadecane. MIT said, “A sample of the material made to test the concept showed that, simply in response to a 10-degree-Celsius temperature difference between night and day, the tiny sample of material produced 350 millivolts of potential and 1.2 milliwatts of power — enough to power simple, small environmental sensors or communications systems.” The journal Nature Communications published the work online in February. + MIT News + Nature Communications Images via Melanie Gonick and Justin Raymond

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MIT’s thermal resonator generates power "out of what seems like nothing"

Doing business in a post-Paris world

January 19, 2016 by  
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The new urgency of a Paris-catalyzed trend will prompt a shift in how big companies implement their energy decisions.

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Doing business in a post-Paris world

Boeing, Facebook, Verizon Join New Class of EDF Climate Corps Firms

January 31, 2012 by  
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EDF today announced the first 20 companies slated to take part in the fifth annual energy-efficiency partnership program, which pairs MBA students with companies looking to take a bite out of their energy bills.

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Boeing, Facebook, Verizon Join New Class of EDF Climate Corps Firms

Greener Fridges Can Cut Retailers’ Energy Costs by One-Third

July 18, 2011 by  
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Carbon Trust guide says low-cost measures could save companies 20 percent on their energy bills.

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Greener Fridges Can Cut Retailers’ Energy Costs by One-Third

6 Tips for Making Sustainability Ratings More Meaningful

July 18, 2011 by  
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The number of sustainability indexes has shot up in the past decade, growing from 21 in 2000 to 108 today. Strategy firm SustainAbility offers tips on navigating the nascent industry and advice on how to make it better.  

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6 Tips for Making Sustainability Ratings More Meaningful

The Cloud is Greener Than Your Data Center

November 5, 2010 by  
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A study by Microsoft, Accenture and WSP Environment & Energy finds that shifting business IT operations to internet-based platforms can save 30 to 90 percent of the energy needed to run a firm’s computers.

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The Cloud is Greener Than Your Data Center

Cloud Computing and Sustainability

November 5, 2010 by  
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This white paper from Microsoft shows how companies can save anywhere from 30 to 90 percent of their energy use and emissions by moving IT operations to cloud computing infrastructures.

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Cloud Computing and Sustainability

Obama To Announce "Cash For Caulkers" Program

March 2, 2010 by  
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President Obama is set to announce a new residential renovation funding program that they call a “triple win”: a jolt to the sickly construction industry, saving Americans money on their energy bills and reducing dependence on oil and other fossil fuels. Last month they might have called it a “quadruple win” and mentioned greenhouse gas reductions, but they don’t do that any more, Senator Inhofe would complain. If they do it right, the six billion dollar program can create a lot of jobs; caulking and sealing is labor intensive, and can put a lot of people to…

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Obama To Announce "Cash For Caulkers" Program

The Trials and Terrors of Insect Life as Captured by Marta Grzesiak (Slideshow)

March 2, 2010 by  
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Image credit: Marta Grzesiak With hard bodies, iridescent colors, segmented eyes, pairs and pairs of wings, and, let’s not forget, wings—It’s hard to imagine creatures more dissimilar to ourselves than insects. Yet, when we take a close look, we can see that the lives of insects follow many of the same patterns as our own: We all eat, mate, and eventually die. Whether you see the similarities or not, the macrophotography of Marta Grzesiak will leave you with a new impression of insect life

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The Trials and Terrors of Insect Life as Captured by Marta Grzesiak (Slideshow)

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