(2002) Guinness are well known for the fact that their beer is black and white. So it is only natural that they would exploit this quality in their ads. So, this ads show how cold it is (extra cold) and has things that you would normally find in places that are cold. Also, the white foam that forms at the top of the pint glass is made to look like ice.
Ad agency: Abbott Mead Vickers BBDO