Final answer:
Increased levels of greenhouse gases in the atmosphere can cause an increase in the temperature of the planet's climate due to the greenhouse effect.
Step-by-step explanation:
Increased levels of greenhouse gases in the atmosphere can lead to an increase in the temperature of the planet's climate. Greenhouse gases, such as carbon dioxide and methane, trap heat from the sun and prevent it from escaping back into space. This is known as the greenhouse effect. As a result, the Earth's temperature rises, leading to changes in weather patterns and potential impacts on ecosystems and human activities.