> When you think about how a digital product or website creates an environmental impact, you can think of it creating it in three main ways - through the Packets of data it sends to users, the Platform the product runs on, and the Process used to make the product itself.
From https://sustainableux.com/talks/2018/how-to-build-a-planet-f... :
> SustainableUX: design vs. climate change. Online, Worldwide, Free. The online event for UX, front-end, and product people who want to make a positive impact—on climate-change, social equality, and inclusion
If you want to try it, a power meter is a good thing to have anyhow, or someone could lend you one. Plug it in and load different websites a few times, then look how many joules you used. Not every site can be told apart with a limited measurement like this, especially on the lighter end of the spectrum, but if you want to know if Tor Browser mitigates this then you can confirm it this way.
I didn't because this research has been done long ago and with rsa key operations, which are both more severe if you can capture it and much more difficult to measure. That you can see the difference between multi-megabyte JavaScript pages is a given at that point.