Keskustakaasujen
Keskustakaasujen, also known as greenhouse gases, are gases in Earth's atmosphere that trap heat. They are called "greenhouse" gases because they act like the glass walls of a greenhouse, allowing sunlight to enter but preventing heat from escaping. The primary greenhouse gases include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and fluorinated gases. These gases are essential for maintaining Earth's temperature, as they keep the planet warm enough to support life. However, human activities such as burning fossil fuels, deforestation, and industrial processes have significantly increased the concentration of these gases in the atmosphere, leading to a phenomenon known as global warming. The increased concentration of greenhouse gases traps more heat, causing the Earth's temperature to rise. This rise in temperature has various impacts, including melting polar ice caps, rising sea levels, and more frequent and severe weather events. Addressing the issue of keskustakaasujen requires global efforts to reduce greenhouse gas emissions and transition to renewable energy sources.