Chum salmon's alarming migration signals dire consequences for humanity

Chum salmon, an anadromous species, are breeding in the Arctic due to unprecedented warming of the waters caused by climate change. The Arctic is warming four times faster than the rest of the planet, making it conducive for salmon to spawn in large numbers. While the increased salmon counts may provide food for other species, scientists are concerned about the overall ecological change, including melting ice and increased vegetation, which can lead to soil degradation and the release of planet-heating methane. Researchers are placing sensors in the Arctic to monitor water temperature and assess the impact of the expanding salmon presence.