It's including the amount used by your machine while viewing the page, so if you're using a desktop with a 500W PSU (and you're using all 500W, which is probabl

It's including the amount used by your machine while viewing the page, so if you're using a desktop with a 500W PSU (and you're using all 500W, which is probably an overestimate) and you spend a minute reading the article, that's 30kJ, which is roughly 1/2 a gram of methane[1], so roughly a gram of CO2 (more if it's coal, more if you take into account the fact that generators don't capture all the energy as electricity). [1]https://en.wikipedia.org/wiki/Methane#Combustion https://en.wikipedia.org/wiki/Methane#Combustion