prompt explain why greenhouse gases are essential and yet a concern. read more >>

Brief Explanations:

Greenhouse gases like carbon - dioxide trap heat in the Earth's atmosphere, maintaining a habitable temperature (essential). However, excessive emissions from human activities such as burning fossil fuels have increased their concentration, leading to enhanced global warming and climate change (concern).

Answer:

Greenhouse gases are essential as they keep the Earth warm enough to support life by trapping heat. They are a concern because human - induced increases in their levels are causing global warming and climate change.