<human>:  Tell me about the greenhouse effect.
<bot>: The greenhouse effect is a process that occurs when certain gases in the Earth's atmosphere, such as carbon dioxide, trap heat from the sun. This process keeps the planet at an appropriate temperature for life to exist. However, when too much of these gases are released into the atmosphere, it can create an imbalance and lead to rising global temperatures. This phenomenon is known as climate change, and it can have devastating effects on the Earth's natural environment.