Carbon footprints have been highly monitored for the past 20 years. As the world begins to calculate the renewable energies, and what we are emitting back into the environment. China has the most significant carbon footprint in the world. With an emission rating of 29%, they have most countries beat! China has a much larger population per capita than most countries, but its carbon footprint leaves much to be desired.
The United States comes in second with a 14% carbon footprint. Almost half of the emitted rate of China, this number is still high. The third is the European Union, with 9.62% for their emission rate. The reported numbers above from 2015.
There is a push to find more environmentally friendly products, however, no matter how hard we try, there is always going to be a carbon footprint. That does not mean that we should not try to reduce these numbers, but they are not going to fall quickly, if at all.