The world has been burning for decades as global warming continues to ravage the planet. While its effects are felt in all areas of the globe, its pervasive influence on the oceans is becoming increasingly more apparent. The ocean plays a huge role in balancing temperatures and absorbing excess carbon dioxide, yet its capacity to do so is gradually decreasing due to the exploitation of its resources and the unchecked emission of pollutants in the atmosphere. As a result, the global ocean is facing unprecedented levels of acidification and warming, both of which pose major threats to marine life and human activities. The warming of the ocean has caused a major shift in the weather pattern, as well as an increase in storm intensity. Rising sea levels have also had a direct effect on coastal communities, causing displacement and destruction on a large scale. The warmer ocean surface furthermore reduces mixing between different ocean layers, which in turn has a far-reaching impact on ocean ecosystems. Species such as coral are particularly vulnerable to the effects of climate change, as their basic calcium carbonate skeletons cannot withstand the increased acidity of the seawater. This has already had serious implications for coral reef habitats, and it is expected to get much worse in the years to come. A further consequence of global warming is a decrease in oxygen levels in the ocean, primarily due to the higher temperatures that accelerate respiration processes. This could lead to a massive die-off of fish, shellfish, and other marine animals, disrupting the food webs and shifting the nutrient balance. At the same time, marine species are being exposed to more extreme heatwaves, as well as acidic water, leading to ecosystem disruptions and losses. Fortunately, there are still ways to combat global warming, both on a small- and large-scale. At the local level, we can reduce our use of fossil fuels, as well as promote sustainable agricultural practices that reduce runoffs and promote the natural cycling of nutrients. On a global scale, nations must come together to promote policies and initiatives that reduce emissions, protecting both land and marine ecosystems. We must also support research efforts that explore the effects of global warming on the ocean, in order to better understand and address the issue. The effects of global warming on the ocean are far-reaching and extremely troubling. Its consequences will only continue to worsen, posing potentially severe threats to both marine and human life, unless effective measures are taken by individuals, nations, and the global community. It is now up to us to secure the future of our planet, as well as all life forms that inhabit it.