carbon-footprint/lib/internet/internet.js

Calculate your carbon footprint. Food, transport, purchases, fashion, electricity and digital activities like streaming.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const __1 = require("../");
/*

Info/examples/critics on 1-byte model :

https://theshiftproject.org/wp-content/uploads/2019/03/Lean-ICT-Report_The-Shift-Project_2019.pdf

https://github.com/carbonalyser/

https://www.carbonbrief.org/factcheck-what-is-the-carbon-footprint-of-streaming-video-on-netflix

*/
const toJoules = (x) => x * 3.6 * Math.pow(10, 6);
/* 0.007 & 0.058 in kWh/GB - divide by 8 to get bits */
const FactorDataCenter = toJoules(0.007 * Math.pow(10, -9)) / 8;
const FactorNetwork = toJoules(0.058 * Math.pow(10, -9)) / 8;
/* 0.055 in kWh/hr */
const FactorDevice = toJoules(0.055 / (60 * 60));
/*
    duration : Seconds
    dataWeight : Bits
    carbonElectricityIntensity : kgCO₂eq/J
*/
const getInternetUsageCarbonImpact = (duration, dataWeight, carbonElectricityIntensity) => {
    /* GHG : greenhouse gas */
    const GHGdataCenter = dataWeight * FactorDataCenter * __1.electricity.world;
    const GHGnetwork = dataWeight * FactorNetwork * __1.electricity.world;
    const GHGdevice = duration * FactorDevice * __1.electricity[carbonElectricityIntensity];
    /* kgCO₂eq */
    return GHGdataCenter + GHGnetwork + GHGdevice;
};
exports.getInternetUsageCarbonImpact = getInternetUsageCarbonImpact;