Stop climate change
Climate change is mostly caused by burning fossil fuels for energy - and to a lesser extent, by today's agriculture.
- But note: Agriculture has other major environmental impacts too, besides just climate change.

Note that a large chunk of emissions are a function of how much new "stuff" people buy: See sub-sections of the pie, related to: industry (producing materials, manufacturing), agriculture, and transporting goods.
Other major factors include heating buildings and driving cars.
See also: This other pie chart that shows energy usage in more detail (but doesn't include non-energy emissions).

Solutions we ultimately need ✊🏻✊🏽✊🏿
- Replace ALL fossil fuel energy, with renewables and/or nuclear power
- Not technologically feasible, currently.
- Would become more feasible if the demand for energy (and vehicles) was lower. This is quite viable, as long as people in first-world discussion "first-world", for lack of a better terminology
Talk: I didn't want to say "developed countries" here, because a less experienced person reading quickly might mistake it for "developing countries" (which is the opposite of what I'm trying to convey). I also didn't want to say "rich countries" because some people might mistakenly think their country isn't rich enough for it to apply to them. So I'm stuck using an old, somewhat improper term: "first-world countries". countries are willing to make some lifestyle changes:
- Would become more feasible if the demand for energy (and vehicles) was lower. This is quite viable, as long as people in first-world discussion "first-world", for lack of a better terminology
- Not technologically feasible, currently.
- Some lifestyle changes are still needed even if we phase out fossil fuels:
- Stop food waste
- Make the food supply more plant-based (does not require 100% veganism)
- ↑ These are needed to prevent deforestation. See why.
Base knowledge
Note: Some of these pages might not be written yet:
See also
- Decarbonize the energy supply
- Cultural norms that lead to unsustainable living - and how to fix them
- FAQ - "Why should we reduce our carbon footprint when it's rich corporations' fault?"