Overfishing attempts don't work and people don't listen to the problem. Pollution, climate change and habitat loss are also problems. “One of the problems is the decline of fish habitats. Additionally, tropical coral reefs in the oceans have shrunk by half and could all disappear by 2050. Much of this is due to warmer waters and acidification. According to the report, more than 25% of ocean marine life lives in coral reefs and approximately 850 million people directly benefit from it. The loss of coral reefs could be catastrophic. A second problem is pollution. There are 250,000 tons of plastic in the oceans. Plastic harms smaller fish that larger fish rely on for survival and can also harm larger fish and mammals that become entangled or trapped, causing suffocation. Linked to pollution is climate change, which is responsible for the oceans changing more rapidly than at any other time in history. A slight increase in temperature will change ocean currents and increase acidity levels. A slight increase in temperature will also disrupt the ocean's food chain. Species will change their migration patterns in search of fresher water, which will only further unbalance the world's oceans." (CNN, Gray) This shows that people need to stop littering and polluting the world