Ship Chemical Pollution: Why Is It Worse Than You Think

Unmasking Maritime Pollution’s Depths The global shipping industry, while vital for international trade and economic growth, significantly contributes to chemical pollution in our oceans and atmosphere. This pollution extends far beyond the visible oil spills that often capture headlines. It encompasses a complex mixture of air pollutants, greenhouse gases, and water contaminants, with far-reaching consequences for both environmental and human health. ...

December 30, 2024 · 8 min · 1695 words · doughnut_eco

Ocean Acidification and Its Impact on Shellfish

To truly understand the complexities of ocean acidification, it’s essential to delve into its underlying chemical mechanisms. When seawater absorbs atmospheric CO2, a gas that is being emitted at alarming rates due to human activities, it triggers a cascade of chemical reactions that ultimately increase hydrogen ion concentration and subsequently lower the water’s pH, making it more acidic.12 This intricate chemical process simultaneously reduces carbonate ion availability, a critical building block. This reduction proves particularly devastating for shell-building organisms such as oysters, clams, and mussels, which rely on these carbonate ions for survival and the development of their protective shells.34 ...

December 25, 2024 · 7 min · 1333 words · doughnut_eco

Food Security Challenges and Opportunities

Introduction Food security is a fundamental requirement for human well-being and societal stability. The 1996 World Food Summit defined it as the state where “all people, at all times, have physical and economic access to sufficient, safe and nutritious food to meet their dietary needs and food preferences for an active and healthy life”.1 This definition underscores the importance of not just having enough food, but also having access to the right kinds of food to support health and well-being. Indeed, food and nutrition security are indispensable for both physical and mental well-being, playing a crucial role in overall human development.2 Furthermore, food security is intricately linked to social stability, as its absence can exacerbate social unrest and conflict.3 ...

December 16, 2024 · 11 min · 2295 words · doughnut_eco

Climate Change Breaching Safe and Just Boundaries

A recent study published in Nature has raised concerns about the current state of Earth’s climate system. The research suggests that the “safe and just” climate boundary has already been breached, with global average temperatures surpassing the 1°C threshold above pre-industrial levels.1 This finding is particularly significant in the context of the Paris Agreement’s goal to limit warming to 1.5°C, as it indicates that we are dangerously close to exceeding this critical limit. ...

December 13, 2024 · 6 min · 1145 words · doughnut_eco