Common but Differentiated Responsibilities Explained
Common but Differentiated Responsibilities (CBDR) is a principle of international environmental law that recognizes all nations share a duty to protect the environment, but…
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Human Systems and Society
Explores how societies organize, interact, and shape the world around them
Evidence Strength vs Certainty: How Often Are Clinical Guidelines Based on High-Certainty Evidence?
A 2021 systematic survey of 138 clinical practice guidelines found that only 9.1% of recommendations were supported by high-certainty evidence, according to a study…
How Urban Sprawl Increases Resource Consumption: Mechanisms, Evidence, and Mitigation Strategies
Urban sprawl—low-density, car-dependent development—significantly increases per capita consumption of land, energy, water, and materials. Compact, mixed-use urban forms can reduce these demands, but implementation…
Who Is Most Vulnerable to Extreme Heat?
A large multicountry observational study found that the elderly, people with cardiovascular or respiratory diseases, and those living in urban areas face the highest…
How Air Pollution Affects the Heart and Lungs: Evidence from the California Teachers Study
A long-term cohort study of over 100,000 women found that exposure to fine particulate matter (PM2.5) and nitrogen dioxide (NO2) was associated with increased…
Global Study Links Wildfire Smoke to Tens of Thousands of Annual Deaths
A large international study found that short-term exposure to fine particulate matter (PM2.5) from wildfires is associated with increased daily mortality from all causes,…
ESG vs Sustainability: Key Differences and Why They Matter
ESG (Environmental, Social, and Governance) refers to a set of criteria used by investors to evaluate a company’s operations and risk exposure, while sustainability…
What Is Energy Intensity? A Comprehensive Explainer
Energy intensity is a measure of the energy required to produce one unit of economic output, typically expressed as energy consumption per unit of…
Walking and Cycling for Public Health: A Comprehensive Analysis
Walking and cycling are low-cost, high-impact solutions for improving public health by increasing physical activity, reducing air pollution, and enhancing mental well-being. Evidence strongly…
What Is Ecological Economics? A Comprehensive Overview
Ecological economics is a transdisciplinary field that views the economy as a subsystem of the Earth's ecosystem, emphasizing that economic activity must respect biophysical…