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Human activities have significantly impacted the environment through deforestation, pollution, overpopulation, and overuse of natural resources. Deforestation occurs as forests are cut down to make way for agriculture and settlements, contributing to habitat loss. Pollution in the forms of waste, water contamination, and air pollution from industry and vehicles degrade ecosystems. A growing human population places more stress on the environment by consuming more resources. Increased carbon dioxide emissions from fossil fuel usage enhance the greenhouse effect and global warming, raising Earth's temperatures and threatening ecosystems. Conservation efforts are needed to protect biodiversity and restore degraded habitats.
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- 3. INTRODUCTION HUMAN IMPACT ON THE ENVIRONMENT OR ANTHROPOGENIC IMPACT ON THE ENVIRONMENT INCLUDES: impacts on biophysical environments, biodiversity and other resources. The term anthropogenic means an effect or object resulting from human activity.
- 4. FACTORS: HUMAN IMPACT ON ENVIRONMENT Factors contributing to ENVIRONMENTAL LOSS are: DEFORESTATION, OVER-POPULATION, WASTE, POLLUTION, OVERUSE/WASTAGE OF NATURAL RESOURCES, ENERGY INDUSTRY etc....
- 6. DEFORESTATION Deforestation, clearance or clearing is the removal of a forest or stand of trees where the land is thereafter converted to a non-forest use. Deforestation occurs for many reasons: used or sold as fuel used as pasture for livestock plantations of commodities Settlements, etc.
- 8. EFFECTS OF OVER- POPULATION (negative). Human overpopulation occurs if the number of people in a group exceeds the carrying capacity of a region occupied by that group. Environmental pollution Loss of habitat Over usage of resources High farming practices (soil degradation) Inadequate clean drinking water and sanitation Deforestation (creating a living space)
- 9. WASTE Wastes is a term used for unwanted materials.
- 10. Examples includes: municipal solid waste (household trash/refuse), hazardous waste wastewater (such as sewage, which contains bodily wastes, or surface runoff) radioactive waste, and others. These examples of wastes affect our environment when dumped in wrong places e.g. near water sources.
- 11. POLLUTION
- 12. WATER POLLUTION Water pollution is the contamination of water bodies. Water pollution occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds. Water pollution affects plants and organisms living in these bodies of water.
- 13. AIR POLLUTION Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, it's also called smog. Some air pollutants are poisonous. CAUSED BY : Smoke from factories Producing electricity Vehicles on the road Burning of fossil fuels etc.
- 14. LAND POLLUTION Land pollution is the deterioration (destruction) of the earth's land surfaces, often directly or indirectly as a result of man's activities and their misuse of land resources Examples: Litter found on the side of the road. Illegal dumping in natural habitats. Damage and debris caused from unsustainable mining and logging practices. Oil spills that happen inland.
- 15. OVERUSE OF NATURALRESOURCES the depletion of natural resources has become a major focus of governments and organizations such as the United Nations. The depletion is caused by Electricity production Mining, petroleum extraction, Fishing, Forestry etc..
- 16. AND NOT FOR
- 18. HOW? RECYCLING REUSE REPLACING (E.G. AFORESTATION) EDUCATING PEOPLE TO WISELY UTILIZE THEM IN ORDER FOR THEM TO RECOVER ETC.
- 19. GREENHOUSE EFFECT AND GLOBAL WARMING CO2, water vapour, and other greenhouse gases reflect infrared radiation back toward Earth; this is the greenhouse effect This effect is important for keeping Earth’s surface at a habitable temperature. Due to the burning of fossil fuels and other human activities, the concentration of atmospheric CO2 has been steadily increasing. Increased levels of atmospheric CO2 are magnifying the greenhouse effect, which could cause global warming and climatic change. Global warming can be slowed by reducing energy needs and converting to renewable sources of energy
- 20. HOW GLOBAL WARMING AFFECT US? Temperature increases will have significant impacts on human activities, including: where we can live what food we can grow how and where we can grow food where organisms we consider pests can thrive
- 21. NEED OF CONSERVATION Conservation biology is the scientific study of the nature and status of Earth's biodiversity with the aim of protecting species, their habitats, and ecosystems from excessive rates of extinction. Habitat conservation is a land management practice that seeks to conserve, protect and restore, habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range.
- 23. THANK YOU
- 24. REFERENCES Harshil, M. (2015) Impact of human activities on environment. Available from slide share at https://www.slideshare.net/HarshilMavani1/impact-of-human-activities-on-environment (accessed on 16 September 2017). Soc, L. (2013) Human impact in the environment. Available from slide share at https://www.slideshare.net/lucylin13/human-impact-in-the-environment (accessed on 17 September 2017). Nguyen, H. (2014) Human activities that affect natural ecosystems. Available from slide share at https://www.slideshare.net/waynesteven545/human-activities-that-affect-natural-ecosystems (accessed on 17 September 2017). Vane, R. (2014) Human impact on environment. Available from slide share at https://www.slideshare.net/lavaneparra/human-impact-on-environment-41073372?qid=26bab0ba- 4498-46c5-9816-144454480f9a&v=&b=&from_search=7 (accessed on 17 September 2017) Sackl, X. (2008) Human Impact On The Environment. Available from slide share at https://www.slideshare.net/sacklax40/human-impact-on-the-environment-presentation (accessed on 17 September 2017).