How to Save the World for Free

Notes about designing and building low energy, low impact houses and other structures. Information about the environment and what we can do to make it better.

Wednesday, September 18, 2024

Tax the rich out of the sky

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A tax on private planes and superyachtd could bring much needed revenue in, making billionaires pay for some of the harm they’re doing. Judg...

Wednesday, September 04, 2024

Is Biochar a miracle material?

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It certainly sounds it. The creation process generates more heat than it uses- meaning manufacture could be self sustaining, or used as ener...

Saturday, August 31, 2024

Scientists Plan ‘Doomsday’ Vault on Moon

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I wrote Pickers about breaking into a seed and equipment repository in the Alps. Maybe there needs to be a sequel about one on the moon. ht...

Friday, August 30, 2024

Biofuel for airliners?

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The use of biofuels in aviation is just beginning, and it has a long way to go to cut even the current levels of pollution, let alone that f...

Tuesday, August 13, 2024

The limits of heat pumps

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Heat pumps are an incredible technology, and a key part of cutting the carbon impact of heating and cooling homes. But no technology is perf...

Monday, August 12, 2024

Solar farms as biodiversity boosters

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Carefully managed, solar farms can produce more than just renewable energy. They’ve been found to boost wildflower growth and pollinators. D...

Tuesday, March 26, 2024

Hope for hops

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There are fears for the future of British beer, as hop yields fall due to climate change. But there are scientists on the job, breeding more...

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