In this article, we explore the impact of climate change on marine life. Rising sea temperatures, ocean acidification, and decreasing oxygen levels are threatening the survival of various marine species. Coral reefs, home to a multitude of marine life, are especially vulnerable to these changes. The decline in coral reefs will not only have ecological consequences but also impact the livelihoods of millions of people who depend on these ecosystems for food and income. Furthermore, the loss of biodiversity in the oceans can have cascading effects on the entire marine ecosystem, ultimately affecting human well-being. Urgent action is needed to mitigate the effects of climate change on marine life, through measures such as reducing carbon emissions and increasing marine protected areas. Time is running out, and we must act now to protect our oceans and ensure a sustainable future for all life on Earth.