Greenhouse gas regulations are rules set by governments to limit the emission of gases that contribute to climate change, such as carbon dioxide and methane. These regulations aim to reduce the overall amount of greenhouse gases released into the atmosphere, helping to mitigate global warming and its associated impacts on the environment. These regulations can include measures like setting emission limits for industries, promoting renewable energy sources, and encouraging energy efficiency. By implementing these rules, governments hope to protect public health, preserve ecosystems, and promote sustainable development for future generations.