Developing Countries

Developing countries are nations with lower income levels, less industrialization, and lower Human Development Index (HDI) scores; in AP Environmental Science (Topic 6.7), they matter because many rely on biomass like wood and charcoal for energy, which drives deforestation and air pollution.

Verified for the 2027 AP Environmental Science examLast updated June 2026

What are Developing Countries?

Developing countries are nations with lower average incomes, less industrialization, and lower Human Development Index (HDI) scores than developed nations. In practice, that means weaker infrastructure (including limited electrical grids), more poverty, and less access to education and healthcare. None of these are moral judgments; they're descriptions of where a country sits economically and developmentally.

For AP Enviro, the term is really an energy story. When a country lacks a reliable grid and money for fossil fuel or renewable infrastructure, people burn what's cheap and nearby. That usually means biomass, such as wood, charcoal, animal waste, and crop residue. So whenever an AP question says "a developing nation," it's signaling a specific energy profile to you: heavy biomass use, limited grid access, and the environmental tradeoffs that come with both.

Why Developing Countries matter in AP Environmental Science

This term lives in Unit 6 (Energy Resources and Consumption), specifically Topic 6.7 on energy from biomass, and supports learning objective 6.7.A, describing the environmental effects of biomass power. The essential knowledge (ENG-3.I.1) is the core of it. Burning biomass is cheap, which is exactly why developing countries lean on it, but it releases carbon dioxide, carbon monoxide, nitrogen oxides, particulates, and volatile organic compounds. Overharvesting trees for fuelwood also causes deforestation. The AP exam loves this tradeoff because it forces you to weigh economic reality (low cost, no grid needed) against environmental cost (air pollution, forest loss). If you can explain why a low-HDI country burns wood instead of building a natural gas plant, you understand the human side of energy consumption that Unit 6 is built around.

How Developing Countries connect across the course

Biomass Energy (Unit 6)

This is the closest link. Developing countries are the main context where biomass shows up as a primary energy source, not a niche one. The low cost makes it accessible, but it brings deforestation and indoor air pollution along with it.

Human Development Index (HDI) (Unit 6)

HDI is the measuring stick that defines this term. It combines income, education, and life expectancy into one score, and low HDI scores are basically the technical definition of 'developing.' Energy use per capita tends to climb as HDI climbs.

Renewable Resources (Unit 6)

Here's the twist. Biomass counts as renewable only if it regrows as fast as it's burned. In developing countries where fuelwood demand outpaces forest regrowth, a 'renewable' resource gets used in a decidedly nonrenewable way.

Are Developing Countries on the AP Environmental Science exam?

You'll mostly see this term as the setup in a multiple-choice stem, something like "a developing nation with limited grid infrastructure plans to expand biomass power." Your job is to read "developing" as a clue, then identify the tradeoff the question is testing. Even sustainably harvested biomass still produces particulates, carbon monoxide, and other air pollutants when burned, so don't assume "sustainable harvest" cancels out combustion problems. No released FRQ has used this term verbatim, but the developing-country context is a natural setup for FRQs asking you to describe environmental consequences of an energy choice and propose alternatives. Be ready to name specific pollutants from ENG-3.I.1, not just say "pollution."

Developing Countries vs Developed countries

Developed countries have high incomes, heavy industrialization, and high HDI scores, and they get most of their energy from fossil fuels, nuclear, and large-scale renewables on established grids. Developing countries have lower HDI scores and weaker grids, so a much bigger share of their energy comes from burning biomass directly for heat and cooking. On the exam, the country type tells you which energy sources and which environmental problems to expect.

Key things to remember about Developing Countries

  • Developing countries have lower incomes, less industrialization, and lower HDI scores than developed nations.

  • Many developing countries rely on biomass like wood, charcoal, and animal waste for energy because it's cheap and doesn't require grid infrastructure.

  • Burning biomass releases carbon dioxide, carbon monoxide, nitrogen oxides, particulates, and volatile organic compounds (ENG-3.I.1).

  • Overharvesting trees for fuelwood causes deforestation, so biomass is only truly renewable when harvest matches regrowth.

  • When an exam question says "developing nation," treat it as a signal that the question is about biomass energy tradeoffs and limited grid access.

Frequently asked questions about Developing Countries

What is a developing country in AP Environmental Science?

It's a nation with lower income, less industrialization, and a lower Human Development Index (HDI) score than developed nations. In AP Enviro (Topic 6.7), these countries matter because they often depend on biomass like wood and charcoal for energy.

Why do developing countries use biomass for energy?

Biomass is cheap, locally available, and doesn't require an electrical grid, which many developing countries lack. The tradeoff is air pollution (CO2, CO, particulates, NOx, VOCs) and deforestation from overharvesting fuelwood.

Is biomass a clean energy source for developing countries?

No, not in the combustion sense. Even though biomass is renewable when sustainably harvested, burning it still produces carbon monoxide, particulates, nitrogen oxides, and volatile organic compounds, which cause serious indoor and outdoor air pollution.

What's the difference between a developing country and a low-HDI country?

They're essentially the same idea measured two ways. HDI is the actual index (combining income, education, and life expectancy) used to rank development, so a low HDI score is what classifies a country as developing in the first place.

Does sustainable harvesting fix the problems with biomass energy?

It fixes the deforestation problem but not the combustion problem. A practice-style question on this exact scenario points out that sustainably harvested wood still releases pollutants like particulates and carbon monoxide when burned.