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The Effects of the Marine Heatwaves and the Collapse of Marginal North Atlantic Kelp Forests


In the world currently, there has been an extreme climatic change. It is associated with global warming due to the emission of carbon(iv)oxide into the atmosphere. The ozone layer has been affected by carbon hence extreme temperatures. Extreme temperature affects not only land life but also marine life. The report explains the effects of the marine heatwaves and the collapse of marginal North Atlantic kelp forests (Smith et al., 2023). The carbon emission is due to human activities such as industrial emissions. Extreme climatic change has had a negative impact, such as Marine heatwaves (MHWs). Kelps forest has been affected by the heat waves in North Atlantic. Extreme temperature affects ecosystem stability. In the past, global warming was minimal compared to the current period due to increased carbon-realized activities. The marine heat wave has been increasing by almost 50 % in the current decant, which makes it hard for the ecology to support the aquatic life. There has been increased motility of species in the marine edge because they are pushed into a condition beyond their tolerance. The Marine heatwaves effect has been researched by different institutions such as the University of Oslo, New haven, Blindern, University of Australia, USA department of Biosciences, and others have jointly researched the Marine heatwave effects on kelp forest (Smale, 2020).

From the research, it was found that extreme temperature leads to an increase in the marine heatwave. The trend was analyzed from 1982 to 2018, over 30 years of analysis. The research found that there was an increase in temperature. The Marine wave affected the kelp temperature since they increased motility. It was also found that there was a dynamic of kelp mortality (Suryan et al., 2021). There was high motility of kelp in the Eastern USA and southern Northway site. Kelp abundance was measured based on the marine heatwaves during, before, and after 2018. It was found that the density of sugar kelp reduced during the marine heatwave. The kelps reduced in blend length between August and November.

Kelp forests have declined, and turf algae have replaced many places. The kelp has not been able to withstand the warm edges due to the marine heat waves. There was reduced photosynthesis capacity due to the extreme heat. In some cases, the plants were forced to develop other spices which could survive the edge temperatures (Al‐Ghussain, 2019). The research was successful because appropriate materials and methods were used. Environmental data were quantified. The long-term record of sea temperature and the marine heatwave was used. Kelp abundance was also used, making it easy to evaluate the kelp cover over a different period. Experimentally transplanted kelps were used to determine how kelp survive in different areas.


In conclusion, Marine heat waves due to global warming can affect the life of plants and animals. The world can reduce global warming if all the people unit to fight the pandemic. The world can be safe since if we concentrate on moving towards clean, carbon-free energy; then global warming will end. Engineering techniques usually capture the carbon(iv)oxide from the air that should be used (Ramaswami et al., 2021). Governments across the globe need to come up with solid laws which are moving toward zero carbon emissions. If clean sources such as biogas are supported, the adverse effects caused by human activities will be reduced, and the world will be safe.


Al‐Ghussain, L. (2019). Global warming: Review on driving forces and mitigation. Environmental Progress & Sustainable Energy38(1), 13-21.

Ramaswami, A., Tong, K., Canadell, J. G., Jackson, R. B., Stokes, E. K., Dhakal, S., … & Seto, K. C. (2021). Carbon analytics for net-zero emissions sustainable cities. Nature Sustainability, 4(6), 460–463.

Smale, D. A. (2020). Impacts of ocean warming on kelp forest ecosystems. New Phytologist225(4), 1447–1454.

Smith, K. E., Burrows, M. T., Hobday, A. J., King, N. G., Moore, P. J., Sen Gupta, A., … & Smale, D. A. (2023). Biological impacts of marine heatwaves. Annual Review of Marine Science15, 119–145.

Suryan, R. M., Arimitsu, M. L., Coletti, H. A., Hopcroft, R. R., Lindeberg, M. R., Barbeaux, S. J., … & Zador, S. G. (2021). Ecosystem response persists after a prolonged marine heatwave. Scientific reports11(1), 1–17.


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