Global warming has had an impact on ocean stratification, revealing significant increases in both near-surface and deeper water layers that disrupt crucial ecological balances and climate system functions.
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Featured Image Caption: View of bubble coral in the Red Sea, Egypt (Image Source: Coral burbuja (Plerogyra sinuosa), mar Rojo,
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A recent study, published in Geophysical Research Letters, sheds new and troubling light into sea ice retreat and albedo decline over the Arctic and Antarctica across 44 years of satellite observations.
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Terrible for biodiversity, bottom trawling also releases a huge amount carbon from the sea floor. Researchers have now quantified this obscure source of emissions, which rival those of Argentina!
Read MoreIn the Atlantic Ocean there is a giant “river” that affects many aspects of life for us terrestrial dwellers, from the regional climates we enjoy to the sea level at our shore. This “river” is the Atlantic Meridional Overturning Circulation (AMOC), one of the planet’s major ocean circulation systems. The ocean has been churning for millenia through this circulation system, but now there are signs of change.
Read MoreCOVID-19 has disrupted much of life as we know it – and the environment is no different. While we may not know the full impact until many years later, scientists suspect that the sudden, drastic decrease in fossil fuel use, especially air travel, will appear as some disruption to our seemingly unstoppable climb in atmospheric carbon dioxide (CO2) levels. The primary way humans can slow global warming is to decrease our use of fossil fuels. What would such a world look like? Scientists hope to build models in order to learn and make better predictions from this unexpected experiment.
Read MoreIllegal, unreported, and unregulated (IUU) fishing poses an imminent threat to biodiversity in our oceans. Notoriously difficult to track, fishing vessels are able to elude traditional tracking measures. Authors H. Weimerskirch et. al. introduce the concept of the “ocean sentinel”, where sea birds that are naturally attracted to fishing vessels are equipped with bio-loggers. Data from these loggers help locate where, when, and how frequently IUU is occuring.
Read MoreGlobal ocean temperatures are currently rising and have been for decades. Scientists are working to discover how this changing climate affects species around the world, from the very large to the very small. This includes phytoplankton, the microscopic marine algae that live in most bodies of water around the globe and produce half the world’s oxygen. But some of these species are toxic, and can cause harm to human and wildlife alike if they are able to grow out of control. Though a number of studies have been undertaken to try and understand more about these harmful algal blooms, much is still unknown about their growth. A group of scientists were interested in how changing ocean temperatures affected the geographic ranges of harmful algal blooms over time in order to better predict blooms in the future.
Read MoreSeagrasses provide vital habitat and resources for marine ecosystems. Water pollution, disease, and coastal modification have led to a decrease in 30% of seagrasses across Europe. Researchers analyzed over 1,000 studies to understand the trends of seagrasses over nearly 150 years. While overall losses have been great, the last few decades have shown seagrasses are starting to recover – likely due to strategies to decrease water pollution and protect vital habitats.
Read MoreIn the center of the Atlantic Ocean lies the Sargasso Sea. The brown seaweed, Sargassum, gives the Sea its name. However, in the past decade this belt of Sargassum has been exploding. During certain seasons, the Sargassum belt has expanded from West Africa to the Americas. Beached seaweed has led to numerous problems and concerns for much of the Caribbean, Central America, and South America. Research led by Dr. Mengqiu Wang from the University of South Florida used previous data to determine what makes these seaweeds take over the ocean in order to better predict when these blooms may occur.
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