What is methane (CH4) classified under international agreements?

Methane (CH4) is classified as a greenhouse gas under international agreements because it has significant effects on climate change and global warming. In atmospheric science, greenhouse gases are substances that trap heat in the atmosphere, contributing to the greenhouse effect. Methane is much more effective at trapping heat than carbon dioxide over a short time frame, making its tracking and management crucial for mitigating climate change.

International agreements, such as the Paris Agreement, recognize the importance of regulating greenhouse gas emissions, including methane, to achieve environmental targets. Many countries have set goals to reduce their methane emissions due to its potent impact on climate change. This classification not only signifies the need for monitoring and reduction strategies but also highlights the importance of including methane in broader strategies aimed at addressing climate-related issues.

The other options do not reflect the broader scientific consensus or regulatory focus concerning methane.