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Food and Energy

Grade 8
Aug 22, 2022

Key Concept

  • Change in Biodiversity
  • Causes of biodiversity loss
  • Food
  • Energy
  • Energy Sources and their impacts on biodiversity

Change in biodiversity 

Change in biodiversity influences environmental processes through trophic interactions among species. Biodiversity manages the flow of nutrients through cycles, water, and mitigates the effects of environmental change. Biodiversity is also of direct significance to human prosperity, society, and entertainment. The provisioning of clean water and different food supply makes it fundamental for all individuals. There are various factors that cause changes in biodiversity. Primary factors are destruction of land, rise in global temperatures, and uncontrolled spread of invasive species. Contamination and changes in precipitation further influence biodiversity. 

Causes of biodiversity loss 

The presence of life depends on the intensity of evaporation from all sources such as plants, land etc., along with solar radiation, level of carbon dioxide, temperature, and the availability of water and inorganic supplements. However, these factors upon which the presence of life depends has been severely impacted by human activities Thus, in the last century, the quickly extending human population and economies have put lots of expectation on biodiversity assets. 33% to one-half of the world’s earthbound surface has been adjusted by human action. 


Food creation requires a different scope of plants, creatures, microorganisms, and parasites, both for the immediate food inventory and to support the hidden biological system processes that make horticulture possible—water supply to soil productivity improvement, fertilization, and regular irrigation control. Production of food is an essential part of biodiversity. Onshore, land transformation for agribusiness and the strengthening of horticulture reduces the quality and land accessibility. Food production, likewise, also affects freshwater life through water extraction and the decrease in water quality by soil and farm substance run-off. Downstream contamination, particularly from composts, harms marine frameworks. The untamed life of marine frameworks is also vigorously impacted by fishing and related activities. The most significant cause of land destruction has been the change of everyday environments for crop production. Decrease in the accessibility and nature of wild food sources, water, and territory, limit the capacity of untamed life to live in a cultivated climate. The food framework also drives decrease in biodiversity through its commitment to environmental change. The worldwide food framework is answerable for emission of ozone harming substances such as chlorofluorocarbons (CFC). Ecological change influences biodiversity by changing natural surroundings’ appropriateness. This makes delicate species cease to exist or prompts them to move to new areas as varied species move in. As standard biological systems lose and acquire species in light of environmental change, it impacts the strength of entire biological systems. 

Food security faces enormous difficulties because of populace development, neediness, globalization, environmental changes, and many other different elements. Providing quality food and nourishment to all is significant for worldwide advancement. Biodiversity conservation and worldwide food security are, henceforth, two significant difficulties. 


Many types of energy have the after effects on biological systems. For example, petroleum (fossil fuel) is a source of energy. It is used in automobiles. The burning of fossil fuel leads to pollution, that has adverse effects on the biological system. Society’s developing prerequisites for energy are bringing about massive changes in those equivalent environments, both in the quest for energy sources and because of energy use designs. Energy use has impacts at nearby, public, and worldwide levels. Contamination from consuming petroleum derivatives and the related effects of corrosive downpour impacts biodiversity. 


Energy Sources and their impacts on biodiversity 

Fossil fuels 

Its impacts on biodiversity: 

  • Worldwide environmental changes and related aggravations, especially coal and natural gas, when combined with human populace development and speeding up paces of asset use, will cause lower quality organic variety.  
  • Air pollution has adverse effects on forests.  
  • The immediate effect of oil slicks on amphibian and marine biological systems are broadly revealed. 

Its ensuing effect on human prosperity: 

  • Changes in distribution of and loss of natural resources that support livelihoods.  
  • Respiratory disease due to poor air quality. 

Biomass combustibles, renewables and waste 

Its impacts on biodiversity: 

  • The diminished measure of land accessible for food crops or different necessities because of extraordinarily extended utilization of land to deliver biofuels. 
  • Consuming harvest buildups as fuel additionally eliminates fundamental soil supplements, lessening natural soil matter and water-holding limit of the dirt. Intensively dealing with a biofuel estate might require extra contributions of petroleum products for apparatus, composts, and pesticides, which further impacts the non-renewable energy sources.  
  • Monoculture of biomass fuel plants can cause soil and water contamination from compost and pesticide use, soil disintegration and water run-off, with ensuing loss of biodiversity. 

Its ensuing effect on human prosperity: 

  • Cardiovascular and respiratory disease from reduced indoor air quality, due to wood-burning stoves, especially among poor women and children. 

Nuclear energy 

Its impacts on biodiversity: 

  • Water used to cool reactors is delivered to climate at temperatures above the surrounding and complements environmental effects of climatic limits, for example, heatwaves, on riverine fauna. 
  • Produces limited quantities of ozone depleting substances during development.  
  • Because of the potential dangers presented by thermal power, a few atomic plants are surrounded by safeguarded regions. 

Its ensuing effect on human prosperity: 

  • Health impacts of ionizing radiation include deaths and diseases due to genetic damage. 


Its impacts on biodiversity: 

  • Building huge dams prompt loss of timberlands, untamed life territory and species populaces, disturbance of regular waterway cycles and the debasement of upstream catchment regions because of immersion of the repository region.  
  • Dam repositories additionally discharge ozone harming substances building due to spoiling of vegetation and carbon inflows from the bowl. 

Its ensuing effect on human prosperity: 

  • Building large dams can result in the displacement of people.  
  • Alterations in the availability of freshwater resources for human use. 

Alternative energy sources 

Its impacts on biodiversity: 

  • The use of poisonous synthetic substances in the assembling of sun-oriented energy cells presents an issue both during use and removal.  
  • Disposal of water and wastewater from geothermal plants might cause critical contamination of surface waters and groundwater supplies.  
  • Rotors for wind and flowing power can cause some mortality for transient species, both earthly and marine.  
  • Strong visual effect of wind ranches. 

Its ensuing effect on human prosperity: 

  • Diminished species populations to give basic materials of life.  
  • Toxins delivered to the climate might cause general medical conditions.  
  • The decreased economic value of lands near wind farms is due to strong visual impacts. 


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