The “Heartbreaking” Effect of Algal Blooms – Heart disease and the Southern Sea Otter

Our favorite hand-holding marine mammals, sea otters, are threatened by environmental toxins. Chemicals produced by algae blooms move up the food chain and cause a multitude of diseases in top predators. A new study documented how algae blooms cause heart disease in sea otters, what this means for our own seafood consumption, and proposes solutions to our pollution.

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Red, White, and Blue-Green Algae: Harmful Algal Blooms Block Summer Plans, and Could Become More Common Without Action

Recent harmful algal blooms in the Northeast US have thwarted holiday plans for many lake-goers, and climate change might make such blooms more common. If we could have tighter control on the nutrients flowing into the lake, we may have a chance at preventing blooms in the future.

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Talk Turtle to Me: How Algae Could Drive Sea Turtle Populations to Extinction

Rising ocean temperatures have been increasing the size of algal blooms, with Sargassum being one of the most prominent algae species affecting coastlines in the Caribbean. When beached, Sargassum can only be removed from shores through human intervention, which is both costly and time-consuming. These algal outbreaks are ending up on beaches where sea turtles are known to nest, affecting their biology and survivability. Will beached Sargassum on Caribbean shores affect sea turtle populations irreversibly, or will we find a more effective way of dealing with the changing algal populations?

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As Oceans Change, HABs Invade

Global 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.

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Joining forces: The role of the natural and social sciences in addressing the Global Nitrogen Problem

A wealth of scientific knowledge exists on the role of nitrogen in the natural and agricultural world, with research dating back over a century. Nitrogen sustains life and has enabled modern food production to keep up with the demands of the growing human population. However, we have reached a critical state where the use of synthetic nitrogen needs to be regulated due to the multitude of environmental impacts. The problem is that the effect nitrogen has on the planet is rarely discussed outside of scientific circles. With the recent development of international campaigns to address the global nitrogen problem, it’s time to put nitrogen research into practice with the help of social science.

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Double trouble: how floods after bushfire affect the health of our rivers

Between Christmas 2019 and the  2020 New Year, forested mountain ranges across drought-stricken areas in Eastern Australia came alight, with fires ravaging 11 million hectares of bush (Eucalyptus woodlands and rainforests) – a size comparable to England’s land area. These megafires threw the states of New South Wales and Victoria into a state of emergency. The bushfire crisis took a sudden turn when heavy rainfall flooded the scorched land in the span of just two weeks. Unfortunately, while rainfall might appear to be a blessing in light of the megafires, the resulting floods were ultimately not sweet relief for rivers. 

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Mayfly swarms are visible on weather radar. Their declines spell bad news for ecosystem health

Mayfly swarms used to be so large that snowplows had to take to the streets to clear the road of their carcasses. However, recent evidence demonstrates that mayfly populations are decreasing dramatically. This is bad news for surrounding ecosystems, especially for fish and birds that depend on these insects for food.

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