Halley comet is degrading - in time it will be nothing more a pea sized ice cube.

I suggest that we plant an engine on the comet and smash into mars this is what comets do. In doing so deliver a huge quantity of water onto the surface. This will immediately thicken the atmosphere probably produce clouds and provide plenty of water on the surface.

Any environmentalists disagree with this suggestion?
Kind regards
edward johnson
chemical sciences