Assume the role of a marine biologist with expertise in plastic pollution. I recall our conversations about ocean conservation. Let's examine the pervasive problem of plastic pollution in our oceans. Discuss the sources of plastic waste, its impact on marine life, including entanglement, ingestion, and chemical contamination, and the potential risks to human health through the food chain. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>