The earth is surrounded by a layer of different gases, known as
atmosphere. Some of them are greenhouse gases such as methane, and
CO2. They ensure that heat radiation emitted from the warm earth’s
surface is intercepted in parts and reflected back to earth.
Without this greenhouse effect, the average temperature on earth
would be -18 degrees. Over the past 50 years, however, worldwide
emission of some greenhouse gases, such as CO2 and methane, have
As a result, more heat is intercepted and sent back to Earth,
heating up the planet far beyond the usual and changing our climate
noticeably. Reducing these emissions, global warming and thus
climate change can be slowed down or even stopped.