Complex sentence: That event prompted high-level Maldivian interest in global climatic changes but fortunately a 2003 INQUA study found actual sea levels had dropped in the 1970s and forecast little change in the next century.
Split into simpler sentences: That event prompted high-level Maldivian interest in global climatic changes. An INQUA study in 2003 found actual sea levels in the Maldives had dropped in the 1970s and forecast little change in the next century.