Carbon dioxide is the most significant greenhouse gas contributing to global warming due to its high concentration in the atmosphere and its ability to absorb and trap heat.

Sulfur dioxide emissions from industrial activities and power plants react with water vapor in the atmosphere to form sulfuric acid, a major component of acid rain.

Chlorofluorocarbons, commonly used in refrigeration and aerosol propellants, release chlorine atoms in the stratosphere, leading to the destruction of ozone molecules.

The Paris Agreement, adopted in 2015, is a legally binding international treaty that aims to limit global warming to well below 2 degrees Celsius, preferably to 1.5 degrees Celsius, compared to pre-industrial levels.

Vehicle emissions, particularly from diesel engines, are a major source of particulate matter, which can cause respiratory problems and other health issues.

Photochemical smog is formed when nitrogen dioxide and volatile organic compounds (VOCs) react in the presence of sunlight, producing ozone and other harmful pollutants.

Air scrubbing involves passing air through a medium that removes pollutants, such as activated carbon or a chemical solution.

Radon, a radioactive gas that seeps from the ground, is the leading cause of indoor air pollution in homes and can cause lung cancer.

Air remediation involves treating contaminated air to remove or neutralize pollutants.

Particulate matter, especially fine particles (PM2.5), can penetrate deep into the lungs and cause respiratory problems.

Pollution prevention involves reducing or eliminating pollutants at the source, rather than treating them after they have been released.

The Montreal Protocol, adopted in 1987, is an international treaty that aims to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances.

Environmental impact assessment involves evaluating the potential environmental impacts of a proposed project or activity and developing measures to mitigate those impacts.

Sulfur dioxide emissions from industrial activities and power plants react with water vapor in the atmosphere to form sulfuric acid, a major component of acid rain.

Agriculture, particularly livestock production and rice cultivation, is the primary source of methane emissions, contributing significantly to global warming.