Carbon Footprint Calculator for Students

let carbonSteps = “”; const carbonUnit = “kg CO2e”; function calculateCarbonFootprint(){ carbonSteps=””; const energyUsage = parseFloat(document.getElementById(“energyUsage”).value); const transportation = parseFloat(document.getElementById(“transportation”).value); const waste = parseFloat(document.getElementById(“waste”).value); const food = parseFloat(document.getElementById(“food”).value); if (isNaN(energyUsage) || isNaN(transportation) || isNaN(waste) || isNaN(food) || energyUsage <= 0 || transportation <= 0 || waste <= 0 || food <= 0) { alert("Please enter valid positive values for all fields."); return; } // Estimating carbon footprint (simplified for example purposes) const carbonFromEnergy = energyUsage * 0.92; // Example CO2 emissions factor for energy use const carbonFromTransport = transportation * 0.21; // Example CO2 emissions factor for transportation const carbonFromWaste = waste * 1.2; // Example CO2 emissions factor for waste const carbonFromFood = food * 0.5; // Example CO2 emissions factor for food const totalCarbonFootprint = carbonFromEnergy + carbonFromTransport + carbonFromWaste + carbonFromFood; document.getElementById("carbonFootprint").value = totalCarbonFootprint.toFixed(2) + " " + carbonUnit; carbonSteps += `Inputs:
Energy Usage: ${energyUsage} kWh/month
Transportation: ${transportation} km/day
Waste: ${waste} kg/month
Food Consumption: ${food} kg/month

`; carbonSteps += `Formulas:
Carbon from Energy = Energy Usage × 0.92
Carbon from Transport = Transportation × 0.21
Carbon from Waste = Waste × 1.2
Carbon from Food = Food Consumption × 0.5

`; carbonSteps += `Results:
Total Carbon Footprint: ${totalCarbonFootprint.toFixed(2)} kg CO2e/month
`; if (document.getElementById(“calculationStepsCarbon”).style.display === “block”) { document.getElementById(“calculationStepsCarbon”).innerHTML = carbonSteps; } } function resetCarbonFootprint(){ document.querySelectorAll(“#carbon-footprint-calculator input”).forEach(el => el.value = “”); carbonSteps = “”; document.getElementById(“calculationStepsCarbon”).innerHTML = “

Not calculated yet.

“; } function toggleCarbonSteps(){ const s = document.getElementById(“calculationStepsCarbon”); const a = document.getElementById(“toggleArrowCarbon”); if (s.style.display === “none” || s.style.display === “”) { s.style.display = “block”; a.style.transform = “rotate(180deg)”; s.innerHTML = carbonSteps || “

Not calculated yet.

“; } else { s.style.display = “none”; a.style.transform = “rotate(0deg)”; } }