The book and newspaper publishing industry is one of the planet’s most voracious polluters. Last year, those industries efforts resulted in the harvesting of over 125 million trees.

A new report by the Cleantech Group, called “The Environmental Impact of Amazon’s Kindle” is a study of the emissions that devices could produce and prevent. According to the report, a single Kindle displaces the purchase of 22.5 books each year which results in an estimated carbon savings of 168 kg of CO2.

It also says that if the full storage of the Kindle is used then the device prevents almost 11,185 kg of CO2 from being released, which is a significant amount that could really help ease the environmental damage of the publishing industry.