Hundreds of protestors descended on downtown Portland Saturday for a rally, calling for an end to tar sands oil extraction.
Tar sands oil opponents say the process to harvest tar sands oil irreversibly harms sensitive forest lands, uses a substantial amount of energy to gather and refine, and adds greatly to the amount of carbon released into the atmosphere helping speed up the process of climate change.
"This is the last, best chance we have to keep the oil in the ground," said Harvey Ammerman. "We have to move on to solar, wind and tidal power alternative energy. We can't burn this planet up."
"I'm concerned about the future of the planet," said Larry Hamilton, who traveled to Maine from Vermont for the rally. "The future for my children, for my grandchildren, because the tar sands, the whole operation in Alberta, is a total disaster for tipping us toward inevitable global catastrophe."