A、Frequent earthquakes across the Pacific. B、Floods all over the world. C、Low sea surface temperatures. D、An unusually strong El

　　A rare January hurricane has formed far out in the Atlantic, the first to form in the month since 1938. (3) A warning has been issued for the Azores Islands as Hurricane Alex heads in that direction with wind speeds of 140 km/h. The US National Hurricane Center (NHC) said the hurricane was likely to hit the islands on Friday.
　　Meanwhile, another tropical storm, Pali, has formed over the Pacific, similarly rare at this time of year. (4) Scientists have linked the storms to powerful winds and high sea surface temperatures resulting from an unusually strong El Nino phenomenon this year. The World Meteorological Organization has said the emergency of El Nino this year would be among the three strongest recorded since 1950. Severe droughts and significant flooding in many parts of the world are being attributed to the phenomenon, which occurs every two to seven years.
　　3. What do we learn about Hurricane Alex from the news report?
　　4. What do the tropical storms result from?