Put a number on your carbon footprint; recalculate as you cut it.
The more effort you invest, the more accurate your results.
Quick & Easy Calculator (for 5th grade and up)
EPA Calculator (for high school students and up)
Advanced Calculator (for high schoolers and up)
What are carbon offsets? How do they help to counter carbon pollution? Learn more from the David Suzuki Foundation and GoldStandard.