British Columbia Premier David Eby pledged that his government would be the last one standing to uphold a carbon tax even in the face of a potential rollback for the federal government levy. While speaking at the B.C. NDP party convention in Victoria on Saturday, Eby rebuked calls to do away with the provincial carbon tax, which has been in place for nearly 15 years. “Let me be clear, we will not back down. God forbid, if the rest of the countr…