【英语】请高手看下我这句话有没有语法错误~谢谢!
Another effect the car has greater than the plane, as far as i am concerned, is that on our environment.
语法上是否有错?总觉得怪怪的~~
1.the car has greater than the plane有错吗？
要是写成the car has肯定没问题，但是加了 greater than the plane还对吗，总觉得缺东西。。

2.is that on our environment里的that是不是可以不要，我这个that是想替代effect的，不是连词。。
是不是总到句子成分就相当于 another effect,....,is on our environment？？