Reduce energy demand
Note that your lights & computers are only a tiny piece of the pie. Driving & manufacturing are far more significant.
Why
- The majority of the world's energy comes from fossil fuels, which cause climate change.
- The less energy we need, the easier it is to decarbonize the energy supply (switch to renewables).
How
Personal actions
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Collective actions
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FAQ
"Should I replace my computer screen with a new 'energy-saving' one?"
No. It takes far more energy to manufacture new devices than the devices ever use.
This is true in general for electronics and appliances, but there may be some exceptions. See: To replace or not to replace.
"Is there any point in saving electricity in the winter if I have to use electric space heaters anyway?"
No. Wasted electricity is the same as electric heating.