Why do humans have such a high population density compared to what our body size says we should have?

What is Malthus' simplistic view as to why human populations will crash? What's the problem with this view?

Why have human populations increased by a massive amount even though recently land used for agriculture has barely increased?

What are the two reasons for rapid human population growth?

Describe the 5 stages of the demographic transition model in terms of birth and death rates.

What are the three factors that affect birth rates.

What is an ecological footprint?

What is the equation for environmental impact?

What are the three types of environmental scarcity? How do they arise?

Have humans exceeded their carrying capacity?

Why doesn't the optimistic guess of human carrying capacity make sense?

What is the living planet index?

Organisms must _____ or ______ due to climate change.

What are the 3 changes that climate change causes?

What is phenology?

Why does range expansion?