Some people believe that he is simply displaying the same characteristics he had as a legislator, turning the EPA from a weak agency into a strong agency. But others say that his uncompromising style is not in the long-term interests of environmental work.
有人認為他展現了立委時的問政本色，把環保署由過去的弱勢機構變成強勢機構；也有人認為他強硬的作風，並非環保工作長久之計。