The port authority has already approved the expansion of the Neptune Terminals coal facility in North Vancouver, which would more than double its capacity from 8.5 million tonnes annually to 18.5 million.
Meanwhile in Surrey, the port authority is exploring the possibility of approving a new direct transfer coal facility at the Fraser Surrey Docks that would have a capacity of 4 million tonnes. That capacity could increase in the future.
But several Metro Vancouver municipalities and environmental groups say the expansion could affect air quality and lead to environmental disaster, serious health issues, and climate change.
"Are we going to be this really livable green region or are we going to be the doormat for coal companies on their way to Asia?" said Kevin Washbrook, director of Voters Taking Action on Climate Change.
Vancouver mayor Gregor Robertson introduced a motion on Tuesday, aiming to prevent more coal from being transported from the Lower Mainland.
And Wayne Baldwin, White Rock's mayor, also voiced his opposition Tuesday.
"It's going to quadruple in a number of years so we're looking at eight trains every two days," Baldwin said.
"And each train is about 2.5 kilometres long, which is pretty well the whole length of our waterfront."
Vancouver City council will be hearing from the coal industry on Wednesday.
"We're a little concerned because we think it adds to the cacophony of voices that are actually trying to discredit the industry," said Alan Fryer, spokesman for the Coal Alliance.
Duncan Wilson, vice president of corporate social responsibility for Port Metro Vancouver, says coal is essential in supporting industries and creating thousands of jobs in B.C.
The expansion plans would make Port Metro Vancouver the largest exporter of coal in North America.
"Two-thirds of the coal that's exported through Port Metro Vancouver is Canadian steel making coal that comes back in things like automobiles and SkyTrain parts, for example," said Wilson.
MAP: B.C.'s coal production and exports
B.C. Almanac live chat
B.C. Almanac hosted a live chat on this topic today. Our guest was Kevin Washbrook, the Director for Voters Taking Action on Climate Change.
Click below to see a replay of the chat.