Data from NOAA's Global Carbon Cycle Project (courtesy of PMEL's Dr. Richard Feely) and NOAA's near-realtime Tropical Atmosphere Ocean (TAO) buoy network (courstesy of PMEL's Dr. Michael J. McPhaden) are depicted in this VRML world.  With recent past El Ni¤o and La Ni¤as now, we believe that many Web users will welcome the opportunity to interact with a three dimensional representation of data from one component of NOAA's El Ni¤o Southern Oscillation (ENSO) observing system.  The world consists of an equatorial temperature section, with the 28.5§ C contour rendered to represent the warm pool in the tropical Pacific, a semi-transparent 20§ C isotherm surface representing the base of the thermocline, and a surface representing CO2 flux from the ocean to the atmosphere.  We used an animation scheme that allows the user to cycle through several years of data spanning El Ni¤o, La Ni¤a, and Normal phases of the ENSO cycle, with the added benefit of colorbars and contours to aid the user.  We also add another layer of interaction: as the cursor is moved over the CO2 surface, the value of CO2 at that location is displayed on the control panel.  See http://www.pmel.noaa.gov/vrml