Thunder Bay participating in Earth Hour

For the third year in a row Thunder Bay is taking part in Earth Hour. Global event to raise awareness on climate change happens at 8:30 in the evening this Saturday. Earthwise Thunder Bay's Charles Campbell says to take part all you have to do is shut off your lights and reduce your electricity load anyway you can.  Campbell says there will also be a moonlight walk at Centennial Park during the hour that everyone is welcome to attend.