
Though they may look like plants, corals are made up of tiny animals called polyps. Coral polyps can take many forms. They may be large reef-building colonies, graceful flowing fans, and even small, solitary organisms. Thousands of species of corals have been discovered. Some live in warm, shallow, tropical seas and others in the cold, dark depths of the ocean. Coral reefs are some of the most diverse and colorful ecosystems in the world. An estimated 2 million species inhabit the coral reefs, rivaling the biodiversity of the rainforest on land. The reefs are home to various species of fish, crabs, mollusks, sponges, and algae. They are the protective habitat for young fish as they grow and have been the food source for many years for coastal peoples. But the burning of fossil fuels – coal, oil and natural gas – pumps excessive amounts of greenhouse gases into the atmosphere. Much of the carbon dioxide is absorbed by the ocean. Global warming would be much worse if it were not for the buffering effect of the ocean. But now the ocean itself becomes warmer and more acidic. These two things together threaten the health of the corals. They also cause the colorful color to bleach out into a white hue. In addition, warm water cannot hold as much oxygen as cold water. And so less oxygen is available for aquatic life under the sea. In his encyclical “On Care for our Common Home”, Pope Francis wrote that “every intervention in nature can have consequences that are not immediately evident”. With the psalmist, we pray: “How varied are your works, O Lord! …There is the sea, great and wide! It teems with countless beings, living things both large and small.” (Psalm 104). We have a duty to protect the most colorful place on earth. – – – Fr. Jim



