When Cities Breathe: Satellite-Derived Carbon Footprint of 54 Global Metropolises (and What It Means for Costa Rica)

Cities are epicenters of humanity’s energy use, transportation, industry, and consumption—and thus they are major sources of carbon dioxide emissions. Understanding the carbon footprint of urban areas is crucial not only for climate accounting, but also for guiding mitigation strategies at the scale where people live and act. However, estimating the emissions of cities is […]

Latin America’s Plastic Paradox: Moderate Generation, Severe Mismanagement

Introduction Plastic pollution has emerged as one of the defining environmental crises of the 21st century. While Asia often draws global attention due to massive production and leakage, Latin America and the Caribbean (LAC) presents a different but equally troubling paradox. The region does not generate the highest volumes of plastic waste per capita compared […]

Panorama of Biodiversity: New Discoveries Amid Growing Threats

The story of life on Earth today is one of striking contrasts. On the one hand, scientists are uncovering hundreds of new species every year, revealing the extraordinary richness that still remains hidden in our forests, oceans, and mountains. On the other hand, climate change, deforestation, pollution, and other human pressures are pushing ecosystems closer […]

Ocean Acidification: Rising CO₂ Threatens Shellfish, Corals, and Ecosystem Stability

While global warming often dominates climate headlines, another crisis is silently unfolding beneath the waves: ocean acidification (OA). Driven by the relentless absorption of carbon dioxide (CO₂) from the atmosphere, the world’s oceans are becoming more acidic at a rate unprecedented in human history. Recent studies led by NOAA, the Plymouth Marine Laboratory, and Oregon […]