英语语法分析高手请进吧

题目

英语语法分析高手请进吧
In presenting the results of Global 2000,the scientists of the US Goverment's most comprehensive study of the future said,"Word popuation growth,the degradation of the Earth's natural resource base and the spread of enviromental pollution collectively threaten the welfare of minkind."
看大这么长的句子蒙了,找不到主谓宾定状补了
麻烦大侠跟我划分下句子结构,
尤其是the scientists of the US Goverment's most comprehensive study of the future said这部分怎么分析此结构?

答案

In presenting the results of Global 2000,【the scientists of the US Goverment's (most comprehensive study of the future)】【 said】,"Word popuation growth,the degradation of the Earth's natural resour...