Environmental activist Betty Krawczyk has lost her last chance to appeal her conviction and sentence for blocking expansion of the Sea To Sky Highway.

The Supreme Court of Canada has refused to hear the case brought by the nearly 82-year-old B.C. great-grandmother.

The court does not release its reasons.

Krawczyk was hoping to appeal both her criminal contempt conviction and 10-month sentence for standing in the way of logging crews in West Vancouver as they began work on the Sea to Sky expansion in 2006. She wanted Canada’s highest court to consider what she believed was an abuse of process.

Her conviction for blocking the highway was the latest in a string of convictions and jail terms that began with her arrest for blockading logging trucks in Clayoquot Sound on Vancouver Island in the early 1990s.

Her activism has earned Krawczyk the nickname Green Granny.

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