There isn't any. Technology has help our world more then we can believe.
While I would completely agree with the above response, I would also like to point out that anything can be misused.
Lasers can be used for eye surgery, to correct defects in the lens, or lasers can be used as a weapon to harm people.
Automation can be used to improve manufacturing processes and to isolate people from potentially harmful procedures which are better performed by machines, or automation can be used to destroy jobs or to remove the human from essential decision making processes.
... just to name two examples.
Not only that, technology also had some negative effects such as addiction to it.
Ipod, cellphone or other electronic devises can cause a serious addiction and even make the person stay up late just to use it.
Also, we are becoming too dependant on technology, so sometimes we can't do anything with out them, because we forgot to do things without these devices.
Automobiles also causes a big environment problems.