Sifting through historical data, Trenberth had found that more, longer, and stronger El Ni?os have occurred during the last 20 years than in the previous 120 years.
La Ni? As and El Ni? OS happen about every three to five years.
拉尼娜和厄尔尼诺现象每三到五年时间就会发生一次。
3
All the projects are meeting the needs of what they were intended for - to generate income for the Ciudad DE los Ni? OS so that the young residents can learn a profession.