Food Production: Declining Fish Stock and Sus...

In this episode, we will discuss the alveoli in the circulatory system.Alveoli are microscopic air sacs within the lungs where the crucial exchange of oxygen and carbon dioxide occurs between air and blood through diffusion. Their structure is highly adapted for this vital proces ...  Show more

In this episode, we look at transportation in cells. We will explain how substances move into and out of cells, highlighting three key mechanisms. Diffusion is described as the movement of particles from high to low concentration areas. Osmosis is presented as a specific type of ...  Show more

00:46 How fishing activity altered the migration pattern of HerringSelective fishing of older herring has resulted in a large shift in the migration pattern of these fish, according to new research. For years, herring have visited sites on the south coast of Norway to spawn, but ...  Show more

In this episode, we discuss metal ore extraction.Traditional metal ore extraction, primarily through mining, faces increasing challenges due to the finite nature of these resources. This method, while conventional, carries significant environmental repercussions. These consequenc ...  Show more

In this episode, we discuss overexploitation and alternative extraction methods. Historical overuse of copper-rich ores has led to a scarcity of these resources. As a result, scientists have developed alternative methods to obtain copper from less concentrated sources. Phytominin ...  Show more

This episode of The Weekly Tradecast looks at how we can fight climate change by cutting the carbon emissions of our fisheries with David Vivas, an UNCTAD legal officer working on trade and environmental issues. The fishing industry is a vital source of food. And it provides work ...  Show more