Copper is essential to green technologies because most wiring is made of copper. The more we electrify society, the more copper we will need. For example, an electric vehicle contains about four times more copper than an internal combustion engine car does - about 183 pounds of it - because copper is used in every major component, from the motor to the inverter and the electrical wiring. That's about six kilometres of copper wire per EV!
Nova Scotia had a number of historical copper mines and has the potential to mine copper again now.