This study is focusing on global warming on marine life and information about blue economy, how can impacts as game changing as well as global effects on environment. According to this analysis, the effects of climate change may be seen throughout the evolution of the marine environment, affecting both the inhabitants and their habitats. Marine creatures and fish immensely disturb by it and respond of productivity is facing alarming time. According to analysts, the marine economy can the prospective to boost assets of such a coastline state. Here, we discuss its effects and the numerous changes that are increasingly important for scholars and international organizations to promote why it's critical to reduce climate change's effects. Its production and the subsequent rise in biological productivity across all ecosystem levels are advantages of global warming. Aquaculture, the introduction of new species, governmental management of fisheries, and the avoidance of marine pollution are a few examples of human activity that tries to safeguard the environment and manage resources. This investigation of blue economy elaborates the ecosystem mismanagement and environmental activities are giving the tough time marine inhabitants as well as human beings. Marine species and environment will be could proved profitable at largely.