Caerphilly County Borough Council is claiming to have saved the equivalent of 11million sheets of paper over the last three-and-a-half years.
The local authority has said efforts to reduce the amount of paper it uses has meant that if the paper was stacked, it would reach a height of 1,213 metres – higher than Snowdon.
New multi-use printers at council offices have meant staff can print on both sides and do away with desktop printers and fax machines.
In February 2010, the council reported that almost four million sheets of paper had been saved over a 12 month period, which equated to a stack of paper totalling over 400 metres high – as tall as the Eiffel Tower.
As a result of this reduction in paper use, the council has said it has saved a total of 121,370kg in carbon dioxide emissions and 3.7 million litres of water.
Cllr Colin Mann, deputy leader of the council and cabinet member responsible for sustainability said: “We are encouraging everyone to play their part and get involved, so it is important that the council leads by example. We are continually looking at new ways to be cleaner, greener and more efficient, which benefits the planet and also leads to a reduction in our costs.”