Articles by Alex Steffen
Alex Steffen (@AlexSteffen on Twitter) writes and speaks about humanity's future on the Earth. He co-founded Worldchanging and edited the book Worldchanging: A user's guide for the 21st century. His latest project is Planetary.
All Articles
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Move a little closer, please: ‘Carbon Zero,’ chapter 3
The key to climate salvation lies in making our cities denser. Alex Steffen explains why smart "walksheds" pave the way to lower emissions.
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People-focused places and fairer cities: ‘Carbon Zero,’ sidebar 2
People-focused density provides a disproportionate benefit for low-income people. In fact, good city design can be part of what gets people out of poverty. Compact development means increasing the supply of housing. Even if the new homes are being built in an area not affordable to those with low incomes, the increased housing supply helps […]
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Why clean energy isn’t enough: ‘Carbon Zero,’ chapter 2
To "zero out" our emissions with clean energy, we'd have to replace all the dirty sources we use now -- and do it all over again in 40 years. In chapter 2 of "Carbon Zero," Alex Steffen explains why we need to rethink our whole relationship with energy.
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Consumption-based footprinting: ‘Carbon Zero,’ sidebar 1
How, where and when we measure our carbon footprint makes a huge difference in what results we get.