Deforestation is a major ecological problem affecting almost all regions worldwide that have been historically covered with forests. Deforestation leads to a degradation of the ecosystems – these can no longer regenerate and end up transforming into regions with much less biological diversity and ecological complexity/ resilience. This also leads to landslides (as tree roots help fix soil), soil erosion, decreased quality of air (as trees produce oxygen, absorb pollutants, and humidify air). Cutting down rainforests also exacerbates global warming as these forest normally help capture more CO2 than they produce. Essays on deforestation might explore any of the aspects listed above – go through the samples to find additional topics and examples of good essay structure, good outline, introduction, conclusion.