What Is a Fossil Aquifer? A Clear Explanation of Ancient Groundwater
A fossil aquifer is an underground layer of water-bearing rock that contains water recharged thousands to millions of years ago under past climatic conditions,…
Evidence library
Joaquimma Anna
Research, explainers and solution analysis for understanding change across a living planet.
349 resources
Avoided Emissions vs Reduced Emissions: A Clear Distinction
Reduced emissions refer to the direct lowering of greenhouse gas output from a specific source, such as a factory installing efficiency upgrades. Avoided emissions,…
What Is a Tipping Element in the Earth System?
A tipping element is a large-scale component of the Earth system—such as an ice sheet, ocean current, or ecosystem—that can cross a critical threshold,…
Seasonal Food vs Imported Food: A Comprehensive Comparison
Seasonal food is grown and consumed during its natural harvest period in a specific region, while imported food is transported from distant locations, often…
Peer Review: What It Does and Does Not Guarantee
The median time from submission to first decision in peer-reviewed journals is approximately 13 weeks, according to a 2022 analysis of over 3,000 journals.…
Carbon Sources vs Carbon Sinks: Understanding the Earth’s Carbon Balance
Carbon sources release more carbon into the atmosphere than they absorb, while carbon sinks absorb more carbon than they release. The balance between these…
District Heating and Cooling: A Comprehensive Analysis
District heating and cooling (DHC) systems distribute thermal energy from centralized sources to multiple buildings, offering a potentially efficient and low-carbon solution for space…
How to Spot a Misleading Environmental Graph
Short answer: A 2018 analysis by Carbon Brief found that 15% of climate graphs in UK newspapers used misleading techniques such as truncated y-axes…
Representative Concentration Pathways (RCPs): Current Scenarios and Climate Projections
Representative Concentration Pathways (RCPs) are greenhouse gas concentration trajectories used in climate modeling. The current set includes RCP2.6, RCP4.5, RCP6.0, and RCP8.5, defined by…
Cradle-to-Gate vs Cradle-to-Grave: Understanding Life Cycle Assessment Boundaries
Cradle-to-gate and cradle-to-grave are two system boundaries used in life cycle assessment (LCA) to define the scope of environmental impact analysis. Cradle-to-gate covers from…