Tag: Earth and Atmospheric Science

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Marine Mercury Rising

Nearly 60 years ago a mysterious illness swept through families in fishing villages along Japan’s Minamata Bay. Those affected presented symptoms of a neurological disease: loss of feeling in the limbs, impaired vision, difficulty walking, and trouble speaking. Many with severe symptoms became paralyzed, and dozens died within weeks. Then, newborns in the region began to exhibit neurological disorders and crippling birth defects. The culprit … Continue reading Marine Mercury Rising

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Increasingly Acidic Oceans Are Dissolving Snail Shells

From Snails Are Dissolving in Pacific Ocean (original article here) Image courtesy of Arctic Exploration 2002, Russ Hopcroft, University of Alaska, Fairbanks, NOAA/OER Recent findings show that CO2 emissions are increasingly acidifying oceans, causing snail shells in the Pacific Ocean to dissolve! This may have far reaching impacts on ocean life, affecting a variety of organisms, especially those within the same food chain. The world’s … Continue reading Increasingly Acidic Oceans Are Dissolving Snail Shells

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Seminars

Extreme Weather: Causes, Effects, and Connections With Climate

Presented by Ethan Butler, Karen McKinnon, Andy Rhines Extreme weather events, from hurricanes to heat waves, seem to be in the news with increasing regularity.But are extreme events actually increasing in frequency? And do they have a connection to our changing climate? Ethan will begin the lecture with an overview of some recent extreme weather events, and their impact on humans, whether due to flooding, … Continue reading Extreme Weather: Causes, Effects, and Connections With Climate

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Math in Nature: Finding order in chaos

Presented by Jessica Kunke, Lei Zhu, Stephen Portillo The natural world is so complex and unpredictable that it might seem math could never be a sufficient tool to understand it.  Our lecture aims to widen this view of math and explore how mathematical models and chaos theory give us insights into nature.  The first part of our lecture introduces the concepts of math models and … Continue reading Math in Nature: Finding order in chaos

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earthrise
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Earth Formation: The making of planet earth

Presented by Katherine Rosenfeld, Laura Schaefer, Anjali Tripathi For millennia, our understanding of Earth came from our own experiences on the planet. Today, with the ability to observe other planets in the Solar System and planets around other stars, we have a better sense of our place in the Universe and how the Earth formed and evolved. This evening’s lecture will begin with current knowledge … Continue reading Earth Formation: The making of planet earth

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Alien Worlds of Hydrothermal Vents

Presented by Heather Olins Since their discovery in 1977, scientists and non-scientists alike have been captivated by hydrothermal vent ecosystems. The geological setting and the biological processes that occur in these locations make them unlike any ecosystem on Earth. In this talk we will start out with some background about what these vents are and how they form. We will discuss the “alien” nature of … Continue reading Alien Worlds of Hydrothermal Vents

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Climate Change: What We Know and Where We Go From Here

Presented by Elizabeth Thomas, Sujit Datta, and Atreyee Bhattacharya During the last three billion years, Earth’s climate has nurtured life. However, records of Earth’s history indicate that climate has changed dramatically with major consequences for its inhabitants. What drives such climate changes? What are the consequences? In tonight’s lecture, we discuss the effects that greenhouse gases can have, as well as a novel engineering approach … Continue reading Climate Change: What We Know and Where We Go From Here

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Managing biodiversity: Indigenous knowledge, elephants, and the repercussions of intervention

When we think of biodiversity management, or maintaining the species diversity in an area, it’s easy to draw parallels to conservation. However, conservation usually focuses on one or few species at a time. This means that it often doesn’t mesh well with biodiversity maintenance, which requires considering the balance of all species in a given habitat. By managing a system based on the needs of … Continue reading Managing biodiversity: Indigenous knowledge, elephants, and the repercussions of intervention

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Alien invasion! Ecological and societal impacts of invasive species

A worker fire ant is steadily traversing the landscape looking for a good meal to take back to the nest. Suddenly, it finds a lizard basking in the sun lying directly in its path. Undaunted, the ant goes back to the nearest foraging trail and recruits colony members to the site of the lizard. Armed with a venomous sting, the ants prepare to launch their … Continue reading Alien invasion! Ecological and societal impacts of invasive species

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The importance of being biodiverse

“An inordinate fondness for beetles” is what the celebrated biologist J.B.S. Haldane apocryphally quipped when asked his opinion of God. purchasing levitra Beetles comprise just under a third of the 1.2 million species described so far [], and a recent paper has estimated that there are about 7-10 million species on the planet. In other words, we have yet to describe about 86% of the … Continue reading The importance of being biodiverse