They told the lower grades scholars that every year a huge number of trees are being cut down for the New Year, and they are thrown out immediately after the holidays. Which is so unfair! After all conifers produce and purify the air we breathe, and they are an important element of the ecosystem of this planet. In order to reduce this damage to the environmental system, they suggested using artificial Christmas trees or growing spruce in a flowerpot or in the house yard. One can decorate a tree for the holiday, and a tree will be able to fulfill its important ecological mission in the rest time of the year.