Nature must be maintained, we keep, just as we keep our identity, the destruction of nature can bring disaster to humans and animal ecosystems, illegal logging, global warming is a very dangerous activity for humans, due to global warming, very hot natural temperatures, and can make thin ozone layer that makes thin, for human can get skin disease, and can increase sea water due to melting ice in kutup and can dive the island, and bring carcass which is in kutup, and pollute sea water, trumbu coral that exist in sea can be damaged. Thank you for reading