designer's own words:The global warming phenomenon caused by greenhouse gas is approaching our society as a big problem. As an obvious example, it is damage due to climate change and economic loss according to this. The global warming phenomenon was caused by greenhouse gas, and the carbon dioxide reaching 77% of greenhouse gas can be said to a main reason of this problem. The ‘CO2 collector’ is a design for solving this problem directly. The ‘CO2 collector’ for the purpose of collecting carbon dioxide in the air is a streetlight introducing the CCS technology. The streetlight can be seen anywhere as public design, and it can be thought that this is a coldly standing product of material civilization like replacement of the disappeared trees of the green area. However, I suggest the design containing environment-friendly thoughts learned from the Nature and tree to this streetlight.