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Bitcoin Uses More Electricity Than Many Countries. How Is That Possible?

By Jon Huang, Claire O’Neill, and Hiroko Tabuchi

Amount of household electricity required to mine one coin: a few seconds’ worth. Bitcoin’s value: basically nothing. Today, you’d need a room full of specialized machines, each costing thousands of dollars.


More Power Lines or Rooftop Solar Panels: The Fight Over Energy’s Future

By Ivan Penn and Clifford Krauss Photo: Tamir Kalifa

The president and energy companies want new transmission lines to carry electricity from solar and wind farms. Some environmentalists and homeowners are pushing for smaller, more local systems.


Lithium is abundant, so extraction economics and culture matter

By Michael Barnard Photo: USGS

‘An unlikely alliance’: US investor-owned utilities and NGOs partner to advance new carbon-free tech

By Ben Fowke and Armond Cohen Photo: Kevork Djansezian via Getty Images

The stakes for taking decisive action to slow and reverse climate change have never been greater. President Joe Biden clearly recognizes the urgency, which is why he wants to slash U.S. carbon emissions in the coming decade and last week proposed increasing the federal budget dedicated to addressing climate change by $14 billion.


Mark Jacobson on the clean energy transition

By Adam Aron and Mark Jacobson

I’m interested in what you have to say about demand reduction. There’s been a rapid rise of renewable energy and it’s going to accelerate even more, but total energy use for the world accelerates much faster. Even with your compelling technical vision of 100% Wind Water and Solar (WWS), is it going to be enough if the wider system is having to grow at 3% GDP per year?


Ethanol: The fuel behind the “dot-corn bubble”

By Parker Hughes

Progress: The Renewable Fuel Standard (RFS) was established in 2005 by the Energy Policy Act and upgraded via the Energy Independence and Security Act of 2007. In a nutshell, the RFS, which is administered by the Environmental Protection Agency (EPA), requires petroleum refiners to add increasing amounts of renewable alternatives into the nation’s transportation fuels.


Energy efficiency can be a tool for economic development

A growing number of home and business owners want to increase energy efficiency. To do so, many will need to hire local contractors who are trained to perform home energy audits and retrofit buildings.