The conversation between human and AI assistant.
[|Human|] Clarify the main idea of this excerpt:

Climate change due in large part to human activities is a reality that the world is currently dealing with.
[|AI|] The excerpt conveys the notion that the current global issue of climate change is predominantly a result of actions carried out by human beings.
[|Human|] 
Clarify the main idea of this excerpt:

Climate change due in large part to human activities is a reality that the world is currently dealing with.