How can we adapt to climate change? This online hub has answers

January 17, 2020 by  
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A database of practical tools, case studies, state and regional action plans, and other resources offers lessons on building resiliency.

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How can we adapt to climate change? This online hub has answers

The haunting reality of ocean plastics

November 11, 2019 by  
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A new report highlights the lasting danger of pollution in our seas — but also the opportunity to remove and innovate with the resources that get dumped there.

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The haunting reality of ocean plastics

Americans, especially millennials and Gen Z, are embracing plant-based meat products

November 11, 2019 by  
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More consumers than ever are trying alternative proteins. But will they make them part of their diets?

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Americans, especially millennials and Gen Z, are embracing plant-based meat products

Mary Nichols on the transition to a decarbonized transportation system

November 5, 2019 by  
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Hear from Mary Nichols, the Chair of the California Air Resources Board (CARB), who have spent years guiding, navigating and sometimes battling for a transition to a decarbonized transportation system.

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Mary Nichols on the transition to a decarbonized transportation system

Can Growth in Sustainable Energy Reduce Natural Resources Overspend?

September 30, 2019 by  
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Globally, we are consuming resources faster than the Earth can … The post Can Growth in Sustainable Energy Reduce Natural Resources Overspend? appeared first on Earth911.com.

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Can Growth in Sustainable Energy Reduce Natural Resources Overspend?

Earth911 Podcast, Sept. 30, 2019: ISRI’s State of the Recycling System

September 30, 2019 by  
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Explore the state of U.S. recycling with Joe Pickard, chief … The post Earth911 Podcast, Sept. 30, 2019: ISRI’s State of the Recycling System appeared first on Earth911.com.

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Earth911 Podcast, Sept. 30, 2019: ISRI’s State of the Recycling System

The call to business and capital, from business and capital

July 13, 2019 by  
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While business has contributed to the mass destruction of our resources, it also holds the key to the solutions.

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The call to business and capital, from business and capital

Scaling distributed energy resources to benefit everyone

June 28, 2018 by  
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For Hawai‘i to achieve its 100% clean energy goal, it cannot rely solely on grid-scale projects, making Distributed Energy Resources and the end-user an important piece of the puzzle.

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Scaling distributed energy resources to benefit everyone

Tackling transportation demand, smart growth and efficiency in Hawaii’s car culture

June 28, 2018 by  
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The transportation sector has typically made up about 30% of the carbon emissions from society, second to the utility sector. However, in 2016, transportation overtook utilities. This occurred even as cars became more efficient because we have built communities and a transportation sector that force people to travel 2% more per year every year.

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Tackling transportation demand, smart growth and efficiency in Hawaii’s car culture

Bitcoin is expected to consume enough energy to power Austria by the end of 2018

May 18, 2018 by  
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Though bitcoin ‘s value may rise and fall dramatically, the energy required to produce bitcoins seems to be ever on the rise. Researchers estimate that the bitcoin network may consume as much as 7.7 gigawatts of energy , the equivalent of the electricity required to power Austria. If the value of bitcoin continues to rise, the entire bitcoin network may one day consume up to five percent of the world’s energy. A new study published in the journal   Joule  predicts that bitcoins use up to half a percent of the world’s total energy supply. Critics question the study’s assumptions and claim a lack of sufficient evidence to determine future bitcoin energy consumption with such precision. Regardless, bitcoin’s rising price could come with significant environmental costs. The bitcoin network primarily consumes energy through “mining” of the cryptocurrency, which occurs by running a computer program and time-stamping bitcoin transactions. These transactions take place on the blockchain, the networked account system behind cryptocurrencies. “The main problem is that the energy consumption primarily relates to how agreement on the underlying blockchain is reached,” blockchain specialist and study author Alex de Vries  told Gizmodo . “Mining makes it a big competitive lottery where the winner — every 10 minutes — gets to create the next block for the blockchain. The built-in reward for this process is fixed, so it motivates participants to constantly add new machines to the network to get a bigger slice of the pie — the more computational power, the more you win.” Related: Bitcoin mining powers Canadian man’s innovative aquaponic garden In his study, de Vries focused on determining the cost of maintaining the network after bitcoin mining becomes unprofitable. “In essence I’m taking an economic point of view to figure out where energy consumption is heading. Previous work typically looked at available hardware, and produced results that only said something about the current consumption,” de Vries said. “My findings were based on the current conditions, so bitcoin doesn’t need to increase in value for the conclusion to hold.” Some experts disagree with de Vries’ methods and conclusions. “A major limitation of de Vries’ model is that it depends on guessing bitcoin’s future price as well as the cost of electricity to miners,” bitcoin investor  Marc Bevand told Gizmodo . “In the paper he assumes bitcoin maintains its current level at approximately $8,000 and electricity costs $0.05 per kWh. If either bitcoin goes up or electricity costs plummet, the energy consumption should increase, and vice versa.” Though the endeavor to determine the future of bitcoin and other cryptocurrencies continues, it seems clear that the environmental impact of bitcoin may be steep. Via Gizmodo Images via Depositphotos (1, 2)

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Bitcoin is expected to consume enough energy to power Austria by the end of 2018

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