2323048 I don't see any footprints anywhere. CK 1 2641269 Tom saw Mary's footprints in the mud. CK 1 1027017 Tom believes he has a very low carbon footprint. CK 1 1096076 The police couldn't find any footprints outside Tom's bedroom window. CK 1 2401256 We found one large footprint and a couple of different size smaller footprints. CK 1 3350150 Did you see any footprints? CK 282804 The criminal left footprints. CK 274501 Footprints were left on the floor. CK 22972 We found the footprints in the sand. Dejo 2958038 Tom saw muddy footprints on the floor. CK 1707272 There were penguin footprints in the sand. AnneWy 274502 The footprints continued down to the river. CK 39633 There are footprints of a cat on the table. CK 3087605 Tom saw dirty footprints on the white carpet. CK 2640294 There were some muddy footprints on the floor. CK 2946725 I heard that they found the footprints of an abominable snowman in the Himalayas. CK 2946726 I heard that footprints of an abominable snowman have been discovered in the Himalayas. CK 2946730 I heard that footprints of an abominable snowman were found in the Himalayan mountains. CK 2946722 I heard that they discovered the footprints of an abominable snowman in the Himalayan mountains. CK 1141316 A carbon footprint is the amount of carbon dioxide pollution that we produce as a result of our activities. Some people try to reduce their carbon footprint because they are concerned about climate change. Source_VOA