1. What is GWP CO2 Equivalent?

CO2 equivalent (CO2e) is a standard unit for measuring carbon footprints. It expresses the impact of different greenhouse gases in terms of the amount of CO2 that would create the same warming effect using Global Warming Potential (GWP) factors.

2. How Does the Calculator Work?

The calculator uses the CO2e formula:

Where:

• \( Emission \) — Greenhouse gas emission quantity (kg)
• \( GWP \) — Global Warming Potential factor (dimensionless)

Explanation: The equation converts emissions of various greenhouse gases into equivalent CO2 amounts based on their global warming potential over a specific timeframe (typically 100 years).

3. Importance of CO2e Calculation

Details: CO2e calculation is essential for carbon accounting, climate change mitigation strategies, environmental reporting, and comparing the climate impact of different greenhouse gases.

4. Using the Calculator

Tips: Enter emission quantity in kilograms and the appropriate GWP factor. Both values must be positive numbers. Common GWP values: CO2 = 1, CH4 = 28-36, N2O = 265-298.

5. Frequently Asked Questions (FAQ)

Q1: What is Global Warming Potential (GWP)?
A: GWP is a measure of how much heat a greenhouse gas traps in the atmosphere compared to carbon dioxide over a specific time period.

Q2: Why use CO2 equivalent instead of actual emissions?
A: CO2e allows comparison of climate impacts from different greenhouse gases by converting them to a common standard based on their warming potential.

Q3: What timeframe is used for GWP values?
A: Most commonly 100-year GWP values are used, though 20-year values are sometimes used for short-lived climate pollutants.

Q4: Are GWP values constant?
A: GWP values are periodically updated by the IPCC as scientific understanding improves and atmospheric conditions change.

Q5: What are typical GWP values for common greenhouse gases?
A: CO2 = 1, Methane (CH4) = 28-36, Nitrous oxide (N2O) = 265-298, SF6 = 23,500 (IPCC AR5 values).