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Another key export for Canada is liquefied natural gas (LNG), which will be helped by a planned facility with a Chinese partner, said Graham Shantz, president of the Canada China Business Council.

Annual active customer accounts increased by 37 percent to 258.3 million in the 12 months that ended June 30, 2017. And fulfilled orders reached 591.2 million, an increase of 41 percent from 418.9 million in the same period in 2016.

Any meeting between Kim and Trump would come after the two Koreas hold their first summit in more than a decade later this month.

Apart from coal consumption, dust from construction sites is also a major source of air pollution, said Qin Dadi, an engineer of the Chinese Academy of Geological Sciences. "Many studies, from both Chinese and international researchers, have pointed to dust from construction sites as a major source of air pollution."

Announced at Amazon’s big Echo product unveiling this fall, the Echo Buttons are the flagship product in a coming wave of “Alexa Gadgets,” simple devices that connect over Bluetooth to an Echo to enable new ways of interacting with Alexa and Amazon Echo smart speakers. Echo Buttons officially launched yesterday. They’re so new that there aren’t any public customer reviews at the time of this writing. We pre-ordered to be among the first to receive them.