Passengers on Capital Area Transit (CAT) buses will ride for free on Saturday, April 18 in recognition of Earth Day.

The fare-free day is part of CAT's effort to encourage an alternate green commute in Raleigh, in conjunction with the Planet Earth Celebration at the North Carolina Museum of Natural Sciences in Downtown Raleigh on Saturday.

Planet Earth Celebration attendees are encouraged to ride a CAT bus downtown and then connect to Raleigh's free downtown circulator service, the R-Line, to get to the Museum of Natural Sciences. For the second year in a row, the museum is teaming up with Burt's Bees and the City of Raleigh to present "Planet Earth Celebration: Respect Your Mother."

The free event, aimed at raising awareness of the importance of environmentally responsible living, will take place from 11 a.m. to 6 p.m. on Saturday, rain or shine. More than 70 educational stations on sustainable living will be on all four floors of the museum and outside along the plaza and the State Capitol grounds.

For more information about the Planet Earth Celebration, visit http://www.planetearthcelebration.com.