State-owned media quote the president as saying he is dissatisfied with this month's global-warming summit in Copenhagen, calling it "a lot of hot air."

VOA: standard.2009.12.25

The beginning of the problems with CO2 and global warming.

二氧化碳和全球变暖的问题2,也从此产生。

麻省理工公开课 - 热力学与动力学课程节选

I keep waiting for somebody-- I think the time is right for somebody to come up with a theory and explain it by global warming.

我一直期待有人-,我认为是时候有人出现,用全球变暖来解释它

耶鲁公开课 - 古希腊历史简介课程节选

And I am still a little bit in shock." Ostrom was also asked about what her research might say about how we deal with the growing problem of global warming.

VOA: standard.2009.10.12