Choose the correct variant.

The Sami people ... in Northern Europe for over 2 500 years. They ... reindeers and ... fish to survive. Climate change ... their way of life these days. The atmosphere in the Arctic ... warmer and warmer. 90% of the reindeer ... to death. Olav Mathias-Eira ... to fight climate change for a long time now. Olav ... that the whole Sami culture is at risk.