In the U.S., former Vice-President Al Gore tells Congress some inconvenient truths about global warming. In sports, Lucy has a homerun of a story as legendary Sammy Sosa returns to baseball after many thought he had struck out for good. Do you ever watch YouTube? If so, check out Isaac's coverage of YouTube's first-ever video awards! Is it science fiction or revolutionary bug control? Adelbert's report on some mutant mosquitoes will answer that question! Finally, Michelle tells us about a baby polar bear in a German zoo that has some animal rights activists growling. City Uses Robot Birds to Scare Pigeons Liverpool, a city in England, is trying to scare away dirty pigeons with robotic falcons that squawk and flap their wings. Falcons are the natural predators of pigeons. American Crocodiles No Longer Endangered Species The American Crocodile was taken off the Endangered Species List recently after being on it for more than 30 years. Its only natural habitat is found in Southern Florida. Glass Skywalk over Grand Canyon Opens The Skywalk is 4000 feet above the canyon floor and has a see-through glass floor that extends 70 feet out into the air. It's certainly not for anyone who's afraid of heights!