来自《耶鲁大学开放课程：环境政治与法律第1集第1集》

where advertising has been most heavily restricted

上瘾率也有所下降
and public service campaigns have been mounted

公共卫生运动也有所增加
to warn people about the dangers of tobacco.

来警告人们烟草的危害
We've also made some great strides in the area of food safety,

我们在食品安全领域也有巨大进步
particularly in terms of reducing microbial contamination.

特别是减少了微生物污染
And also, the stellar success story about the rise of organic food

有机食品的增加
I think is something to take note of and to learn from.

也是值得注意和学习的
So what are the most persistent problems,

那么最顽固最难解决的问题是什么
the ones that have been hardest to deal with, and why?

为什么
Fossil fuel consumption, renewable energy innovation

化石能源的耗尽可再生能源的创新
in part due to our lack of subsidies relative to

一定程度上归结于相关能源的缺失
subsidizing fossil fuels as well as nuclear power.

去补充化石能源和核能