Environmental Persistence: Definition, Mechanisms, and Significance
Environmental persistence is the ability of a substance to remain in the environment without significant degradation, often measured by its half-life. It matters because…
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Data Tools & Learning
Central hub for data resources, analytical tools, and educational materials.
What Is a Moving Average? Understanding the 50-Day Simple Moving Average of the S&P 500
A moving average is a statistical calculation used to smooth out short-term fluctuations and highlight longer-term trends in data. As of March 7, 2025,…
Why Truncated Axes Can Distort Environmental Trends
The global average temperature anomaly for 2024 was 1.28°C above the 1951-1980 baseline, according to NASA GISS. Truncating the y-axis in charts of such…
Systematic Review vs Meta-Analysis: Publication Trends and Current Figures
In 2019, approximately 29,200 systematic reviews were published, with about 63% including a meta-analysis, according to a 2021 study in the Journal of Clinical…
Primary, Secondary and Tertiary Environmental Sources: Current Data Landscape
As of 2024, the Global Earth Observation System of Systems (GEOSS) provides access to over 400 million environmental data resources, spanning primary, secondary, and…
Correlation vs Causation in Environmental Studies: A Data-Driven Examination
A 2018 systematic review found that approximately 60% of observational studies in environmental health used causal language inappropriately, highlighting the persistent challenge of distinguishing…
Why Environmental Datasets Sometimes Disagree: A Case Study of Global Temperature Records
In 2023, NASA GISTEMP reported a global surface temperature anomaly of 0.89°C above the 1981–2010 average, while the UK Met Office's HadCRUT5 dataset reported…