Wetlands are boring areas with little or no importance. The destruction and fragmentation of habitat is one major threat to biodiversity. Acid deposition from the release of nitrogen and sulfur oxides have caused dramatic ecological effects in the United States. The former Soviet Union has experienced a significant boost in agricultural production since 1989. Chronic malnutrition is a difficult and pervasive problem resulting in a food security crisis in mainly LDCs.
Hunger is a persistent problem here in America.
Pessimists believing bad things will happen to the world as a result of unsustainable human populations are often referred to as neo-Malthusians. LDCs continue to use natural gas as a primary fuel instead of wood for cooking and heating. There is a widening of the wealth gap in many countries. The pessimistic view warns that population momentum will propel humankind beyond the carrying capacity of the earth creating much human suffering. The tropical rain forests are predominantly located in the temperate biome.