Not only is this an ecological problem, as fish migration patterns can severely affect ocean food chains and ecosystems, but this problem is also impacting the economy. The northern migration of fish is causing some fishermen to lose their profits and their industry. Fishermen are complaining about the lack of fish turning in their nets, but humans are partially at fault for the northern movement of the fish. Climate change is caused by humans and our modern way of life, but if changes were made to reduce the effects of global warming were made, less fish would be migrating north. If we limited our consumption of fossil fuels and lowered our greenhouse gas emissions, climate change would be less of an issue and fish would stay in their natural regions and habitats.