Global warming(now called climate change) is true,

the periodic change is the nature of the universe. Saying "too much CO2" is definitely arguable. In fact in the dianosaur time had warmer temperature than now. Saying "we need stop global warming" simply like Mao said "People can conquer the nature". However, by thermal dynamics, in theory current combustion engine should have room to get better yield

所有跟帖： 

• 科学家需要这个话题拿经费，政客需要它拉支持，企业需要它开发新市场，政府需要它多收税，老百姓需要它来体现自己的价值 -coolwin- ♀ (0 bytes) () 07/04/2018 postreply 12:25:01

• 气候变迁是永恒的，全球变暖只是其中的一个过程 -biglow- ♂ (101 bytes) () 07/04/2018 postreply 18:35:51