system. It is primarily caused by the increase in greenhouse gases, such as carbon dioxide, methane, and nitrous oxide, in the atmosphere. These gases trap heat from the sun, causing the Earth's temperature to rise.

The primary cause of the increase in greenhouse gases is human activity, including the burning of fossil fuels, deforestation, and industrial processes. Burning fossil fuels releases carbon dioxide into the atmosphere, while deforestation reduces the Earth's capacity to absorb carbon dioxide through photosynthesis.

Other factors contributing to global warming include the release of methane from livestock and agricultural practices, as well as the release of nitrous oxide from fertilizers and industrial processes. The melting of polar ice caps and glaciers also contributes to global warming, as it reduces the Earth's capacity to reflect sunlight back into space.

In conclusion, the primary cause of global warming is human activity, specifically the release of greenhouse gases into the atmosphere through the burning of fossil fuels, deforestation, and industrial processes. It is crucial that we take action to reduce our greenhouse gas emissions and transition to a low-carbon economy to mitigate the impacts of global warming.