General Calculators At Offsetters we wanted to make things simple by offering a flights calculator that is easy to use and by offering simple membership options. The membership options on our homepage are equal to 40%, 100% and 200% of the average emitted by individuals in North America each year. It is also useful to know exactly where your emissions come from, especially if you want to find the best way to reduce them! We have identified a number of sites that allow you to create a detailed emissions profile. David Suzuki Foundation's Climate Change campaign Safe Climate.net CoolDrivePass: Climate Neutral Cars Over the coming months we will be adding new sites to this page.