Oxygen is not a greenhouse gas because it does not absorb and trap heat in the atmosphere like other greenhouse gases.

Industrial activities, such as the burning of fossil fuels for energy production, are the primary source of human-caused greenhouse gas emissions.

Greenhouse gases absorb and trap heat in the atmosphere, leading to an increase in global temperatures.

Methane has a higher global warming potential than carbon dioxide, meaning it traps more heat per molecule.

Volcanic eruptions are the main natural source of greenhouse gas emissions, releasing gases like carbon dioxide and methane into the atmosphere.

Deforestation releases carbon dioxide into the atmosphere when trees are burned or decompose, contributing to greenhouse gas emissions.

Fertilizer use in agriculture is a significant contributor to the increase in nitrous oxide emissions, as nitrogen-based fertilizers can release nitrous oxide into the atmosphere.

Greenhouse gases absorb and trap heat in the atmosphere through a process called absorption, where they capture infrared radiation emitted by the Earth's surface.

Carbon Dioxide (CO2) is the primary greenhouse gas responsible for the enhanced greenhouse effect observed in recent decades due to its high concentration and long atmospheric lifetime.

The concentration of greenhouse gases in the atmosphere affects global temperatures by trapping more heat, leading to an increase in global temperatures.

Global Warming is the term used to describe the increase in the Earth's average temperature due to the accumulation of greenhouse gases.

Increased greenhouse gas emissions are associated with negative consequences such as rising sea levels, more frequent and intense heatwaves, and changes in precipitation patterns, but they do not directly lead to increased agricultural productivity.

Global Warming Potential (GWP) is the term used to describe the ability of a greenhouse gas to trap heat in the atmosphere relative to carbon dioxide.

Increased deforestation is not a common method for reducing greenhouse gas emissions, as it actually releases carbon dioxide into the atmosphere.

The primary role of the Intergovernmental Panel on Climate Change (IPCC) is to conduct scientific research and provide assessments on climate change, including the science of greenhouse gas emissions.