You chose answer E.
The eruption of the El Chichonal volcano in Mexico produced a highly
reflective mist that prevented satellites from detecting the increase in Pacific Ocean
temperatures that indicates the onset of an El Niño.
Today, however, the odds of missing an approaching El Niño due to atmospheric disruption
have been greatly reduced, thanks to an extensive buoy system, deployed in the 1990s, that monitors
Pacific environmental conditions from the ocean's surface and beams the measurements via satellite
directly to scientists.
Want more information on El Niño? Check out this week's NOVA website.
Let's see if you can 'weather' next week's NOVA Challenge!