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How climate change and long-term drought caused the collapse of Bronze Age civilizations
By Roberta Attanasio About 3,200 years ago, many Bronze Age civilizations were thriving on the Eastern shore of the Mediterranean. “To the north lay the mighty Hittite empire; to the south, Egypt was thriving under the reign of the great Pharaoh Ramses II. Cyprus was a copper emporium. Greece basked in the opulence of its elite Mycenaean culture, and Ugarit was a bustling port city on the Syrian coast. In the land of Canaan, city states like Hazor and Megiddo flourished under Egyptian hegemony. Vibrant trade along the coast of the eastern Mediterranean connected it all.” Within a relatively short period of time, however, these civilizations collapsed almost simultaneously. What…
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Results from a global survey highlight widespread eco-anxiety in young people
By Roberta Attanasio The notion of “eco-anxiety” has been creeping into worldwide culture for the past few decades. Now, it’s in the mainstream vocabulary. It’s defined as worry or concern about climate change and its effects. Children and young adults are especially vulnerable to eco-anxiety, as shown by a recent study based on a survey of people aged 16 to 25. The study, published in the journal The Lancet Planetary Health (December 2021), found that nearly 60% of survey participants were very or extremely worried about climate change. A similar number said governments were not protecting them, the planet, or future generations. More than 50% reported each of the following…
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The fertile top layers of soils keep disappearing, a new study shows
By Roberta Attanasio Plants grow in and out of soils—and sustain almost all living beings on our planet, either directly or indirectly. But soils are rapidly disappearing from farms all around the world, threatening our ability to grow food. The treasure beneath our feet is continuously subjected to erosion and degradation, mostly resulting from intensive farming practices. Relentless tilling, for example, allows weeds control by turning the soil over, but leaves it bare and vulnerable to wind and rain—causing the loss of the fertile top layer. Even the famed black Iowa soil is disappearing. “In Iowa they call it ‘black gold’—a fertile blanket covering the landlocked Midwestern state. Thousands…
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How protecting our oceans can help solve some of the world’s greatest challenges
By Roberta Attanasio Stories of the past tell us that our oceans are deep, mysterious and indestructible—but oceans are quickly changing, bowing to biological degradation and much more. Oceans are damaged every day by oil and gas drilling, pollution, and industrial impacts. Human activities are changing the ocean’s chemistry, destroying habitats, and killing marine life. The Great Barrier Reef has lost half of its corals since 1995, and a report released in 2019 on the state of global biodiversity found that over one-third of marine mammals and nearly one-third of sharks and shark relatives are threatened with extinction. Overfishing is one of the primary threats to ocean biodiversity—it endangers not…
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Children exposed to air pollution are more likely to develop disease later in life
By Roberta Attanasio We have known for quite some time that the first years of life represent a unique “window of vulnerability”—exposures to environmental chemicals at this time influence cellular programming in ways that shape health and disease in later years. For example, recent research shows that there is a significant association between multiple prenatal and early life exposures to indoor pollutants and the degree of allergic sensitivity in 2-year old children. In other words, babies exposed to air pollution during prenatal life and for the first several moths after birth, up to 2 years of age, are at higher risk of developing allergic sensitivity. Now, results from a study published…
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Did you hear about Science Moms?
By Roberta Attanasio All around the world, mothers are concerned about their kids’ future. What world will they live in? A world where humanity is still waging war on nature, or one at peace? Science Moms want to talk about our world and what we can do to make it a better place—they are climate scientists concerned about their kids’ future and believe that, with moms everywhere, it’s possible to build a cleaner, safer future for all kids. This is how Science Moms define themselves: “We are a group of climate scientists and mothers who care deeply about the planet that our children will inherit. Together, we aim to demystify climate…
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Climate Change, Parasite Infections, and Immune Responses
By Roberta Attanasio Global climate change noticeably impacts human health—safe drinking water, sufficient food, and secure shelter are threatened by rising sea levels and severe weather events. Heat waves dramatically increase death rates not only from heat strokes, but also from complications arising from cardiovascular, respiratory, and cerebrovascular diseases. Although global warming may bring some localized benefits, such as fewer winter deaths in temperate climates and increased food production in certain areas, the overall health effects of a changing climate are likely to be overwhelmingly negative. For example, climate warming is predicted to increase the transmission of parasite infections. Now, results from a recent study show that host immunity can…
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Soils Are Threatened: Can We Halt The Problem?
By Roberta Attanasio Today, December 4, 2015, is World Soil Day — a day to connect people with soils, and raise awareness of their critical importance in our lives. Soils — the reservoir for at least a quarter of global biodiversity — have been neglected for too long. We fail to connect soil with our food, water, climate, and life. The maintenance or enhancement of global soil resources is essential to meet the world’s need for food, water, and energy security. Soil loss is an unfolding global disaster that will have catastrophic effects on world food production, according to scientists from the University of Sheffield’s Grantham Centre for Sustainable Futures. …
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Global Threats: Climate Change is a Medical Emergency
By Roberta Attanasio For many years, we’ve been aware of the impacts of global climate change on human health and well-being. For example, safe drinking water, sufficient food, and secure shelter are threatened by rising sea levels and severe weather events. Heat waves dramatically increase death rates not only from heat strokes, but also from complications arising from cardiovascular, respiratory, and cerebrovascular diseases. However, the impacts of global climate change on human health are even greater than previously thought — according to a report published today (June 23, 2015) in The Lancet, the threat from climate change is so great that it could undermine the last fifty years of gains…
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Clean Air: The Effects of U.S. Power Plant Carbon Standards on Human Health
By Roberta Attanasio A little more than a year ago, the World Health Organization (WHO) reported that in 2012 around 7 million people died — accounting for one in eight of total global deaths — as a result of exposure to air pollution. These estimates more than doubled the previous ones, and confirmed that air pollution is now the world’s largest single environmental health risk. The WHO concluded that reducing air pollution globally could save millions of lives. But, what policy changes would be most effective at saving lives? The answer comes from a new study published in the journal Nature Climate Change (May 4, 2015.) The study, (US power plant…
