Environmental activists protesting the expansion of the US e-car maker Tesla outside of Berlin say they plan to occupy the forest near the factory for a week. “The longer the occupation lasts, the better,” said a spokeswoman for the Stop Tesla initiative on Friday. The occupation of the wooded area in Grünheide near Berlin began late Wednesday night. Protestors said they’ve prepared themselves for the longer than expected stay. The initiative called on other supporters to visit the camp and bring additional materials such as timber, saws, climbing equipment and hammocks. “We hope that more peo…