Why does ice surrounded by co2 melt fasteR?

Answer 1

because carbon dioxide doesn't absorb the energy from the sun, but it does absorb some of the heat energy released from the earth. When a molecule of carbon dioxide absorbs heat energy, it goes into an excited unstable state. It can become stable again by releasing the energy it absorbed. Some of the released energy will go back to the earth and some will go out into space.

Answer 2

Ice surrounded by CO2 melts faster because CO2 is denser than air and has a higher thermal conductivity, allowing it to transfer heat more efficiently to the ice. This results in faster melting of the ice as it absorbs heat from the denser CO2 faster than it would from surrounding air.