Health

Our Double-Edged Nitrogen Sword Nitrogen exists as a profound duality in Earth’s systems. Its inert atmospheric form ($N_2$) constitutes the most abundant gas surrounding the planet, serving as an invisible backdrop to existence. When converted into reactive forms through fixation processes, nitrogen transforms into a fundamental building block for proteins and DNA, becoming the engine of agricultural productivity that sustains billions of people. ...

Historical Evolution of Water Security Understanding The understanding of water security has evolved significantly over time, particularly in conjunction with the growing awareness of climate change. Historically, water management often focused on ensuring supply for specific sectors like agriculture or urban consumption, often through large-scale infrastructure projects such as dams and irrigation systems1. However, the late 20th and early 21st centuries saw a broadening of the concept of “water security” to encompass not just quantity but also quality, ecosystem health, and the equitable distribution of water resources23. ...

A chemical miracle has turned into a global menace The development of PFAS began in the 1940s when manufacturers started producing these chemicals for their unique properties of water, oil, and stain resistance12. Initially celebrated for their versatility in non-stick cookware, firefighting foams, and countless industrial applications, PFAS were considered technological marvels that enhanced modern life13. The strong carbon-fluorine bonds that make these chemicals useful also make them virtually indestructible in natural environments12. ...

The Stark Geography of Energy Poverty Sub-Saharan Africa has emerged as the epicenter of global energy inequity, housing 80% of the world’s electricity-poor population—600 million people living predominantly in rural areas where grid extension remains economically prohibitive12. The region’s 43% electricity access rate masks devastating disparities between urban areas achieving 81% access and rural communities languishing at 34%, a gap that widened during the pandemic as population growth outpaced electrification efforts34. ...

Social Capital and Mental Wellbeing in a Sustainable World Social capital represents a critical element within the social foundation of the Doughnut Economics framework that plays a vital role in shaping mental health outcomes. Networks, relationships, trust, and social cohesion that exist within communities have emerged as significant determinants of mental health across various populations and contexts12. The concept encompasses both cognitive elements (perceptions of trust and reciprocity) and structural components (social participation and networks), with each contributing uniquely to mental wellbeing34. ...