Per-Capita vs Total Environmental Impact: The Case of Global CO2 Emissions
In 2022, global total CO2 emissions from fossil fuels and industry reached 36.6 GtCO2, while per-capita emissions stood at 4.7 tCO2 per person, according…
Topic archive
Climate Change
Impact of greenhouse gases on global temperature and weather patterns.
Projected Global Warming by 2100 Under Current Policies: Insights from Integrated Assessment Models
According to the UNEP Emissions Gap Report 2023, integrated assessment models (IAMs) project a median global warming of 2.8°C by 2100 under current policies,…
Increasing CO₂ threatens human nutrition
A 2014 study in Nature found that rising atmospheric CO₂ levels reduce the protein, iron, and zinc content of staple crops like wheat, rice,…
Downscaling Climate Data: Statistical vs Dynamical Methods – Current State and Trends
As of 2024, dynamical downscaling achieves resolutions as fine as 1–3 km, while statistical downscaling provides point-scale projections; both methods are essential for local…
Climate Change Explained: Causes, Evidence, Impacts and Solutions
A complete guide to climate change, including causes, scientific evidence, impacts, adaptation, mitigation, carbon cycles, and practical climate solutions.
Climate Mitigation vs Climate Adaptation: Understanding the Two Pillars of Climate Action
Climate mitigation and climate adaptation are two complementary strategies for addressing climate change. Mitigation focuses on reducing greenhouse gas emissions to slow global warming,…
CO₂ vs CO₂-Equivalent: Understanding Greenhouse Gas Metrics
As of 2023, global CO₂ emissions from fossil fuels and industry reached approximately 36.8 billion tonnes (GtCO₂), while total greenhouse gas emissions expressed in…
Absolute Emissions vs Per-Capita Emissions: A Data-Driven Comparison
In 2023, global absolute CO2 emissions reached 36.8 billion tonnes, while per-capita emissions averaged 4.6 tonnes per person, according to the Global Carbon Project.…
Model Projection vs Prediction: Understanding the Distinction in Climate Science
Model projections and predictions are distinct concepts in climate science. As of 2024, the IPCC AR6 projects a global temperature increase of 1.5°C by…
How Scientists Measure Uncertainty: The 2023 Global Temperature Anomaly Example
The 2023 global average surface temperature anomaly was 1.36°C above the 1951-1980 baseline, with a 95% confidence interval of ±0.05°C, according to NASA GISS.…