This is a staggering amount but thankfully it is expected to decrease as technology takes over. Many school lessons are now solely run via computers with their class presentations run on software like powerpoint, the list of tasks for the lesson in a word document and the homework set for the students is also online. The students are also more than likely asked to submit their work online and so a lot less paper is now being used in schools.
There are many programmes across the world dedicated to restoring trees that are cut down for paper. Reforestation is the restocking of existing forests and woodlands which have been depleted, an effect of deforestation. Reforestation can be used to improve the quality of human life by soaking up pollution and dust from the air, rebuild natural habitats and ecosystems, mitigate global warming since forests facilitate biosequestration of atmospheric carbon dioxide and harvest for resources, particularly timber.