**9. Conclusion**

Though seaweed and microalgae farming help in curbing greenhouse gases, these algal communities are now observing threats of extinction and migration. Moreover, toxic microalgae species are becoming a major public health hazard in coastal areas. A proper mitigation plan would help slow down the negative impact of climate change. More research is needed to take necessary and effective mitigation action in terms of the current status of the indigenous seaweed species globally. The actual effect of global warming on the macroalgal communities should be scrutinised first. Moreover, the harmful microalgae bloom events in the coastal regions should be documented and studied profusely, which, in turn, will help the authorities to take actions for preserving the Blue economy.
