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By Elizabeth Sturcken

Feeling down about our planet in 2018? Don't!

There are many reasons to be hopeful around environmental action in the new year—and if the following developments don't make you feel better, I've prescribed some action steps at the end that are guaranteed to set you on a healthier, happier path.

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By Jeremy Deaton

Bitcoin, the much-hyped cryptocurrency, made headlines recently for driving a surge in power use. Around the globe, digital entrepreneurs are 'mining' bitcoins by solving complex math problems, using supercomputers to get the job done. Those supercomputers use a ton of power, which largely comes from coal- and gas-fired power plants spewing gobs of carbon pollution.

But while hackers wreak havoc on the climate, blockchain, the bleeding-edge technology behind bitcoin, could one day help clean up the mess. Climate wonks say blockchain has a role to play in the clean-energy economy, helping homeowners sell electricity, allowing businesses to trade carbon credits, and making it easier for governments to track greenhouse gas emissions.

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By Srinivasan Keshav

Imagine buying a solar panel from a hardware store, mounting it on your roof, then selling the green electricity you produce at a price you set.

Is this even possible? Some companies certainly think so. These startups are harnessing the power of blockchains to democratize green power.

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Blockchain technology could solve food safety and fraud by enabling immediate traceability to the point of origin. Shutterstock

By Sylvain Charlebois

There has been a lot of noise on cryptocurrencies and Bitcoin of late. While some suggest cryptocurrencies are a fraud, others believe them to be the next biggest economic revolution the world has seen since the internet. Bitcoin has brought to light blockchain technology, which offers great potential for food safety and verification in the agrifood sector. Yet it is far from being the panacea for a range of issues affecting the industry—at least for now.

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