尽管作为最大的温室气体释放国之一，美国昨日正式通知联合国：自己要退出巴黎和约。
As one of the biggest greenhouse emission countries, the US formally notifies UN yesterday that it will exit the Paris Climate Accord.
退出过程将会持续一年。
The exiting process will continue for a year.
美国总统特朗普保证，这一举措将会增强美国的石油、天然气以及煤炭行业。
US President Donald Trump assured that this measure will boost US oil, gas and coal industries.