Hi Umair, Great post. Your link inspired me to write about the origins of the carbon footprint calculator. It began in the London office of advertising agency Ogilvy:

https://bettermarketing.pub/how-clever-marketing-sold-the-world-the-myth-of-the-carbon-footprint-b628448c4bd2

You are right we have to halve our consumption, but be wary of using the language of fossil fuels (although I note you did not use the word carbon footprint).