Query	Response
[I]	“The weather pattern comes on the heels of an El Nino that dissipated in 1998. El Nino is a natural phenomenon that involves a surface warming of the eastern and central Pacific Ocean around the equator. For the United States, an El Nino brings unusually warm temperatures to the northern states and cooler, wetter conditions to the South. By the time the next El Nino arrives, scientists hope to be able to give much better forecasts.”
“El Nino”[H]	“La Ninas sometimes occur between El Ninos. Will La Nina wane as El Nino lingers?” he said.”
“Pacific Ocean”[H]	“Those conditions are warming in the eastern Pacific Ocean; shifting of precipitation from the western to the eastern Pacific; slowing of trade winds; and changes in sea level. El Ninos increase storm activity in California and South America while calming things down in the Atlantic and Caribbean.”
“equator”[H]	“Scientists at NASA's Jet Propulsion Laboratory came the conclusion after analyzing the data collected from satellite last week. The weather-altering La Nina phenomenon has all but vanished from the Pacific Ocean, according to NASA satellite observations.”
“temperatures”[H]	“Sea surface temperatures throughout the equatorial east-central Pacific increased during April and May, when temperatures normally decrease in this region. He said the center predicted that after rapid cooling during the summer, ocean temperatures would rebound before cooling again.”
“forecast”[H]	“It disrupts weather worldwide, causing storms, floods and droughts. It is blamed for flooding and heavy snow in the West, abnormally warm weather in the East and extreme weather from South America to Asia.”
“la Nina”[S]	“La Nina and El Nino form the opposite ends of the same climatic cycle, with El Nino fueled by unusually warm water in the eastern Pacific and La Nina driven by cold. A La Nina can drop it nearly 8 degrees.”
“weather patterns”[S]	“El Nino causes reversals of normal weather patterns, resulting in drought in usually wet locales and flooding in arid areas. He said that soil moisture and snow cover appear perceptibly to influence seasonal weather patterns, adding that computer models at Scripps are beginning to incorporate some of these variables with some success.”
“equatorial pacific”[S]	“Wetter conditions than usual will continue over the central and eastern equatorial Pacific and over southeastern South America. La Nina refers to the phenomenon of rapidly cooling equatorial waters in the central Pacific.”
“weather phenomenaon”[S]	“El Nino phenomenon, which comes at an interval of roughly four years, refers to abnormal temperature rises in tropical waters which normally leads to global anomalies in weather and climate. El Nino is a periodic warming of the water in the eastern Pacific Ocean, which shifts weather patterns arriving from that area and can affect the climate worldwide.”
“surface temperatures”[S]	“During August and September, ocean surface temperatures reached near-record levels in many sections of the equatorial Pacific. The pool of unusually cool tropical water marked by low sea levels has shriveled and the equatorial Pacific is warming to normal temperatures, NASA's Jet Propulsion Laboratory said this week.”
“global warming”[S]	“Despite causing anomaly of weather and climate, the El Nino event may help cut global warming by temporarily stemming the release of carbon dioxide from the Pacific Ocean, scientists suggested Thursday. The program said experiments on the relationship between increasing carbon dioxide levels and global warming being done at the Mauna Loa Observatory in Hawaii supported the Australian claims.”
“carbon dioxide”[S]	“The oceans exchange large amounts of carbon dioxide with the atmosphere each year. Scientists usually estimate how much carbon dioxide should be in the atmosphere by calculating how much fossil fuel is burned.”