But increased amount of carbon dioxide means that more heat energy is trapped in the atmosphere causing the global temperature to go up.
mean不是系动词吧?
mean可以是系动词,跟sound,fall,seem类似,意味着,听起来,看起来都算系动词,那个确实是表语从句
谢谢,那再请教个问题,causing 是不是主动的,所以才用现在分词
是的