(9.2) Population Growth

• Effects of Overpopulation

  • Inadequate fresh water for potable water
  • Depletion of natural resources, especially fossil fuels
  • Increased level of air pollution, water pollution, soil contamination, and noise pollution
  • Deforestation and loss of ecosystems
  • Changes in atmospheric conditions resulting in global warming
  • Mass species extinction due to habitat loss in tropical forests because of the slash-and-burn technique
  • High infant and child mortality
  • Starvation, malnutrition, or poor diet will lead to diet-deficiency diseases
  • Clash over scarce resources and crowding leads to increased levels of warfare
• Balance of Nature - Our nature has its own laws and processes to sustain itself
• Overpopulation - It refers to the condition wherein an organism's numbers exceed the carrying capacity of its habitat
• Immigration is the transfer of individuals from one population to another due to weather conditions in the environment and lack of food supply.
• Emigration is the transfer of individuals out of a population and into another population
• Birth refers to the emergence of a young animal or a human into the outside world.
• Deaths - The size of a population declines when individuals die.
• Thomas Malthus - He said that when population grows geometrically, it means that the population rate will be doubled whereas the food supply increases arithmetically as the amount of land is finite.
• Greenhouse gases are gases in Earth's atmosphere such as water vapor carbon dioxide methane ozone, and nitrous oxide that trap heat
• Global warming is the rapid increase of temperature in the atmosphere
• Global Warming

  • Burning natural gas
  • Deforestation
  • Factories and industrial plants
  • Farming practices and land use
• Impact of human activities on biodiversity loss

  • Global Warming
  • Population Growth
  • Pollution
  • Habitat destruction
• Habitat destruction - Destruction of their habitat is the main threat to biodiversity and can lead to animal and plant extinction
• Logging is the act of trimming and transporting trees
• Agriculture - Wildlands are converted for agriculture and farming
• Forest fires happen when humans illegally clear an area of trees
• The Philippines has the largest recorded number of coral species
• Forest management - is the practice of stewardship
• Soil management - Soil is a constituent part of the ecosystem and a substrate for most of Earth's flora, especially for vegetable and root crops
• Air Quality Management pertains to the different uses of innovative processes and technologies to maintain healthy air in the environment