Greenhouse gases, well, these are a number of chemical compounds that would be found in the Earth’s atmosphere. The job of greenhouse gases is to allow sunlight access the Earth’s atmosphere freely, this will let sunlight make contact with Earth, some of the sunlight will then re-radiate in the opposite direction and back into space, this is called infrared radiation, or heat.

So the greenhouse gases are helpful to humans, as the infrared radiation heads back towards space, they collect and trap it into the Earth’s atmosphere. This helps humans because if it wasn’t for all the natural greenhouse gases then the Earth would be way too cold for humans to live. For example we would be living with an average temp of a freezing -2°F that’s a big, big difference to the average of 57°F we are living in today.

So where do greenhouse gases come from? Some greenhouse gases just come about naturally, others like carbon dioxide are human made. Things such as industrial gases are also greenhouse gases.