List the important environmental problems that humanity needs to solve.

1) Environmental pollution. In the process of human activity, a huge amount of garbage accumulates, and there is less and less space for its disposal. It is generally unsafe to store radioactive waste, therefore, humanity must learn how to properly recycle waste.
2) Greenhouse effect. The pollution of the atmosphere with carbon dioxide leads to climate change.
3) Destruction of the ozone layer. Due to the release of gases into the atmosphere, the ozone sphere becomes thinner.
4) Extermination of species. Many species are disappearing due to the development of human civilization.