Bill Nye started in TV with 'Bill Nye The Science Guy,' and now he's just shot season two of his next show.
'Bill Nye Saves The World' has expanded to add guests like Australian finch experts.
Nye says his staunchly pro-science views has a lot of support.
In airports, he says, people come up to shake his hand.
Nye says, "They say, 'fight the good fight, man. Thanks for what you?re doing.'"