A coral reef is an aquatic habitat dominated by corals that construct reefs.

The majority of coral reefs are made up of stony corals, which have polyps that cluster together. Corals eject the symbiotic algae dwelling in their tissues when they are stressed by changes in temperature, light, or nutrients, leading them to turn entirely white. This is referred to as coral bleaching. A coral that bleaches is not dead. Corals can survive a bleaching event, although they will be stressed and may die as a result.

Coral reefs are home to some of the world’s most diverse ecosystems. Thousands of marine animals, including sea turtles, fish, crabs, shrimp,

jellyfish, sea birds, starfish, and others, rely on coral reefs for survival. Shelter, breeding sites, and predator protection are all provided by coral reefs. They also provide food for species at the bottom of the aquatic food chain. Already endangered species may face extinction when reef ecosystems deteriorate.

Image source : earth.org (Problems Plastic Pollution Creates for Wildlife in the Ocean)
i Why are there a lot of PLASTIC WASTE in the sea?‚Äč
Every year, over 300 million tonnes of plastic are produced for a wide range of purposes.

Wildlife is directly and fatally affected by plastic pollution. Each year, thousands of seabirds, sea turtles, seals, and other marine mammals die as a result of consuming or being entangled in plastic. Plastic accounts nearly 80% of all marine garbage discovered from surface waters to deep-sea sediments, with at least 14 million tonnes entering the ocean each year.

The human food chain is being polluted by plastic trash. Algalita researchers saw fish consuming plastic particles and debris during a Pacific Gyre expedition in 2008. Plastic bits were found in 35% of the 672 fish from that trip. Even young infants currently have already been diagnosed with micro plastics in their lungs.

Image source : earth.org (Problems Plastic Pollution Creates for Wildlife in the Ocean)
i Are MELTING ICE CAPS dangerous?
A continental glacier, often known as an ice sheet, is a large mass of glacial ice that covers the earth.

Melting ice caps is a phenomenon caused by human actions. Since the industrial revolution, carbon dioxide and other greenhouse gas emissions have increased global temperatures, especially at the poles, causing glaciers to rapidly melt, calve into the sea, and retreat on land.

As a result of climate change caused by global warming, polar ice caps are melting. We are losing Arctic sea ice at a pace of over 13% every decade, and the oldest and thickest ice in the Arctic has shrunk by 95% in the last 30

years. The world’s refrigerator is the Arctic and Antarctic. They balance out other portions of the planet that absorb heat because they are covered in white snow and ice that reflect heat back into space. Less ice means less heat is reflected, resulting in more extreme heatwaves around the world.

Image source : earth.org (As Arctic Sea Ice Melt Sets Early July Record, Hard Times Lie Ahead for Ice:Studies)