Earth's temperature is rising due to global warming caused by human activities. Greenhouse gases like carbon dioxide trap heat in the atmosphere, leading to climate change. If the current trend continues, temperatures could increase by 2.5°C by 2050 and another 2.5°C by the end of the century. This enhanced greenhouse effect is making the Earth hotter overall, affecting the entire climate. The Earth's atmosphere is made up of gases, with greenhouse gases like carbon dioxide, methane, and ozone trapping heat, while non-greenhouse gases like nitrogen and oxygen do not. The increase in greenhouse gases is causing the Earth to warm up, leading to global warming.