The greenhouse effect traps heat in the Earth's atmosphere, keeping it warm enough for life. Human activities, like burning fossil fuels, have increased greenhouse gases, leading to global warming. This warming can cause catastrophic problems for the planet and its inhabitants. The main greenhouse gases responsible for this effect are water vapor, carbon dioxide, methane, and ozone. Carbon dioxide is the primary culprit in causing global warming. The rise in temperature, even if small, can have significant impacts on the delicate balance of Earth's ecosystem.