there is no reason.

reason 原因,理由,道理There is no reason why you should't tell them in advance what you are going to do.没有理由为何你不该预先告诉他们你打算做什么There would be no reason for not locating sites in area...It is repeatedly claimed that the dumping of nuclear waste poses no threat to people living nearby. If this claim could be made with certainty，+第二句话什么意思？It is repeatedly claimed that the dumping of nuclear wasteposes no threat to people living nearby. If this claim could be made with certainty有反复声称说，核废料倾倒对区民并没有威胁，如果这是确定性的说法，（那么）…那么结合整句话的翻译，作者是赞成还是反对在人口密集地设立场所？其中的there would be no reason要如何翻译才更精确？谢谢了

1. 作者是赞成（但有条件），条件是“核废料倾倒对区民并没有威胁”必须被证明。
   

2. If this claim could be made with certainty, there would be no reason for not locating ...

        如果这个说法可以被证明是确实，那么就没有理由不在人口密集地设立（这些）场所。

        

懂了，谢谢了