减排量计算器
使用减排量计算器评估各项措施的CO₂减排效果。输入基准排放和改进方案参数，计算减排百分比和绝对减排量，量化环保行动的实际成效。
Reduction Achieved
30.0 %
Reduction Achieved vs Baseline Annual Emissions
公式
How to Calculate Emission Reductions
Tracking emission reductions helps measure progress toward climate goals.
Formula
Reduction % = (Baseline - Current) / Baseline * 100
Absolute Reduction = Baseline - Current
Baseline is typically a reference year (e.g., 2019) against which progress is measured. Targets are often set as percentage reductions from that baseline.
计算示例
A company had 500 tons CO2e baseline, currently emits 350 tons, targeting 250 tons.
- 01Absolute reduction: 500 - 350 = 150 metric tons CO2e
- 02Reduction achieved: 150 / 500 * 100 = 30%
- 03Remaining to target: 350 - 250 = 100 metric tons CO2e
- 04Target reduction: (500 - 250) / 500 * 100 = 50%
常见问题
What is a good baseline year?
Most organizations use 2019 as a baseline since it represents pre-pandemic operations. The Science Based Targets initiative recommends a baseline no older than 2015.
What reduction targets are considered science-based?
The SBTi requires at least 4.2% annual linear reduction for 1.5C alignment and 2.5% for well-below 2C, typically aiming for 50% reduction by 2030.
Should I use absolute or intensity-based targets?
Absolute targets (total tons reduced) are preferred for climate impact. Intensity targets (per unit of revenue or product) can complement by accounting for business growth.