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Artwork for Sustainability by numbers

Sustainability by numbers

Hannah Ritchie

Using data and research to understand what really makes a difference

Platform
Substack
PricingOnly free issuesPublishesWeekly
Issues74SubscribersRead sustainabilitybynumbers.com

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Latest Issues

Recent posts by this newsletter. Browse the email archive.

What do American households use electricity for?

The more you look at data on current and future energy demand, the more you realise that it’s nearly all about controlling temperature.

9 days ago
69
19

Low-carbon energy does not have the same energy security risks as fossil fuels

When Russia invaded Ukraine, there was a sudden and dramatic impact on energy prices around the world. Gas prices shot up. Electricity prices in countries reliant on gas did the same. Fertilizers got more expensive (with knock-on impacts on...

21 days ago
114
45

Many people don't know that nuclear power is low-carbon

When I talk about “low-carbon energy” I mean renewables and nuclear.1 I thought this would be clear to everyone, but survey data suggests otherwise.

a month ago
120
165

Do heat pumps work in the cold?

It would be a bit useless if your mode of heating only worked in warm climates, not cold ones. This is becoming a common pushback on electric heat pumps.

a month ago
98
39

Authors

The writers behind this newsletter.

  • Hannah Ritchie
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