Firm Power vs Variable Renewable Energy
Firm power refers to electricity sources that can be dispatched on demand to guarantee supply, such as natural gas, nuclear, and reservoir hydropower. Variable…
Evidence library
Joaquimma Anna
Research, explainers and solution analysis for understanding change across a living planet.
264 resources
Light Pollution and Ecosystem Health: Understanding the Impact of Artificial Light on Nature
Light pollution is the excessive or misdirected artificial light that disrupts natural darkness, affecting wildlife behavior, plant cycles, and entire ecosystems. It matters because…
What Is Water Stress and How Is It Measured?
Water stress occurs when the demand for fresh water exceeds the available supply during a certain period or when poor quality restricts its use.…
Why Humidity Makes Extreme Heat More Dangerous
High humidity prevents sweat from evaporating, crippling the body’s main cooling mechanism. A landmark study found that a wet-bulb temperature of 35°C (95°F) marks…
Stratospheric Aerosol Injection Explained: A Controversial Climate Intervention
Stratospheric aerosol injection (SAI) is a proposed solar geoengineering method to reflect sunlight and cool the Earth by injecting reflective particles into the stratosphere.…
GDP vs Genuine Progress Indicator: A Comprehensive Comparison
Gross Domestic Product (GDP) measures the total market value of goods and services produced, while the Genuine Progress Indicator (GPI) adjusts for factors like…
Cover Crops: Environmental Benefits and Limitations
Cover crops are plants grown primarily to protect and improve soil between cash crop cycles. They offer environmental benefits such as erosion control, nutrient…
Why Environmental Risk Is Unequally Distributed
Environmental risks—such as pollution, toxic waste, and climate hazards—are not shared equally across society. Due to socioeconomic disparities, historical discrimination, and political marginalization, low-income…
Why Sea-Level Rise Differs Between Locations
Sea-level rise is not uniform across the globe due to a combination of factors including gravitational effects from melting ice sheets, ocean currents and…
Why Some Algal Blooms Produce Toxins
Some algal blooms produce toxins as a defense mechanism against grazers or as byproducts of metabolic processes. These toxins, known as cyanotoxins or phycotoxins,…