I studied Hitchcock a little bit at University and knew the famous story about the Birds - that he'd tortured Tippi for a day using real birds. I had no idea that it was a five-day onslaught and that it was the tip of an iceberg that carried on through to another film.

Al Gore the former vice-president of the United States lives in a mansion that uses more electricity than the average family's bungalow! David Suzuki rides on a bus that uses more fuel than a Smart car to get across Canada! Oh my God! And this is just the tip of the vanishing iceberg!