Permafrost Thaw and the Carbon Feedback: A Self-Reinforcing Climate Loop
Permafrost thaw releases ancient organic carbon as carbon dioxide and methane, amplifying global warming through a positive feedback loop. This process threatens to accelerate…
Topic archive
Earth System Climate
Understanding the interconnected components and processes that shape Earth’s climate.
What Are Atmospheric Rivers? A Comprehensive Explainer
Atmospheric rivers are long, narrow corridors of concentrated moisture in the atmosphere that transport vast amounts of water vapor from the tropics to higher…
How Scientists Attribute Extreme Weather to Climate Change
Scientists use a combination of observational data, physical understanding, and computer models to determine whether and to what extent human-caused climate change influenced a…
What Is an Ecological Regime Shift? Definition, Causes, and Examples
An ecological regime shift is a large, abrupt, and persistent change in the structure and function of an ecosystem, often triggered by gradual pressures…
Why Ecosystems Can Change Suddenly
Ecosystems can shift abruptly from one stable state to another when internal feedbacks and external pressures push them past critical thresholds, often with lasting…
Ocean Dead Zones: Causes, Impacts and Solutions
Ocean dead zones are hypoxic areas where marine life cannot survive, caused primarily by nutrient pollution from agriculture and sewage. They disrupt ecosystems, harm…
How the Ocean Absorbs Heat From the Atmosphere
The ocean absorbs the vast majority of excess heat trapped by greenhouse gases, acting as Earth’s primary heat sink. Through physical processes like solar…
What Is Ecological Resilience? A Clear and Comprehensive Guide
Ecological resilience is the capacity of an ecosystem to absorb disturbance and reorganize while retaining its essential functions, structure, and feedbacks. It determines whether…
Ocean Heat Content vs Sea-Surface Temperature: Understanding the Difference
Ocean heat content (OHC) measures the total thermal energy stored in the ocean, while sea-surface temperature (SST) is the temperature of the ocean's surface…
What Is Earth’s Energy Imbalance? A Clear Explanation
SHORT ANSWER: Earth’s energy imbalance is the net difference between incoming solar radiation absorbed by the planet and outgoing thermal radiation emitted back to…