The last time I checked my carbon budget , I came in at a fifth of the national average . I rarely fly , even when booked to address faraway audiences about my personal obsession , climate change - a subject I ' ve covered in three books . Whenever the word " nuclear " comes up at my talks , a shudder runs through the room . Because everyone knows that real environmentalists loathe nuclear power .

Question: why do real environmentalists loathe nuclear power ?
Answer: they have studied in depth the effects of nuclear powerthey have heard many bad things about nuclear power for the environmentNone of the above choices .they have not heard much about nuclear powers effects