"Countdown" by yuumei on DeviantArt While many of us enjoy the luxury of watching TV on our couch with a cold can of soda or beer, the ice caps are melting at an alarming rate. Polar bears that need the ice to hunt and survive are drowning or starving; sometimes forced to search through dumpsters to survive.
This is a visual metaphor for a guy who's an insomniac. He has had sleepless nights counting sheeps. The flock of sheep and his face are more indications of him just counting a lot of sheep to try and get some sleep.