this post was submitted on 28 Feb 2026
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Climate
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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
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Fresh air shops already exist. If the need grows, the supply will grow.
If atmospheric CO2 becomes a health risk, I could imagine future buildings having an attached greenhouse that provides a steady supply of fresh air.
According to this source, "Crops grown in controlled environment agriculture (CEA) production systems such as greenhouses and vertical farms in warehouses consume CO2 as they undergo photosynthesis when exposed to light. A typical greenhouse crop will use 4.8-9.6 kg per hour per acre. This process can drop the concentration of CO2 from ambient levels (around 400 ppm) to as low as 100 ppm if the production site is not ventilated."
This means one acre of greenhouse can provide fresh air to about 15-30 people. That same greenhouse could also provide enough food to feed 5-7 people. Extreme weather will make 20th century style industrial agriculture increasingly fragile, so we're going to need to switch to food forests and greenhouses anyway. Hooking those greenhouses up to housing so people can breathe would be a nice synergy.
The kids can decide for themselves, but long before then I choose exit stage left.