As part of the project, we talked with students about the causes and effects of climate change around the world and about environmental problems. Students from grade 8 took part in the Night of Libraries campaign, in which the main theme this year was Jacek Cygan's poem "Climate for reading". Students read articles related to ecology and climate. Moreover, our youngest students from grades 1-3 made ecological trees and participated in the tree festival. During lessons, they discussed the need to plant trees and take care of the world's green lungs. They learned about interesting facts related to the life of trees and of course they met under our school tree, "Henius" also our students from grade 4 and 6 made a foster in a jar. Grade 8 students prepared multimedia presentations on acid rain and its effects on the environment.