What human activities may increase the level of geenhouse gases in the atmosphere?

Human activities such as burning fossil fuels for energy, deforestation, and industrial processes significantly increase greenhouse gas levels in the atmosphere. The combustion of coal, oil, and natural gas releases carbon dioxide and methane, while deforestation reduces the number of trees that can absorb CO2. Additionally, agricultural practices, particularly livestock production, contribute to methane emissions. These actions collectively enhance the greenhouse effect, leading to global warming and climate change.