1. Problems due to overuse of energy Resources Unit III Part V

2. Problems due to overuse of energy Resources
Some of the major problems which arise due to over exploitation of energy resources
A) Extinction of resource: It has been predicted that many of the non renewable sources like crude oil, will completely deplete in the 35 to 40 years as they are limited and get centuries to replenish
B) Pollution: Overuse of energy sources results in emission of Co2, So2, Nox, particulate matter which causes air pollution, and related problems like , acid rains, global warming.

3. Extinction of Resource

4. Pollution

5. Economic effects: As these resources will be depleted, cost will increase, which will seriously effect economy and the development of the nation.
Need for the development of new technology:
The technology used for conventional resources will become obsolete so new technology has to be developed using alternate fuels.

6. Economic Effects

7. Need for the development of new technology

8. Environmental Impact due to Mineral Extraction

9. Environmental Impact due to Mineral Extraction
Mining and processing of minerals have considerable impact on land, water, air, and biological resources.
Deforestation and degradation of Land: The top soil and vegetation are cleared from mining area to get access to the deposit. Such large scale deforestation and degradation leads to ecological imbalance. Mining activity can cause a considerable loss of land due to Chemical contamination, destruction of protective layer of soil. There may be considerable loss of wild life habitat. Huge quantity of debris may spoil the aesthetic value of the region

10. Subsidence of land: It is associated with underground mining
Subsidence of land: It is associated with underground mining. The presence of Old, deep mines may cause the ground surface to subside, this may seriously damage buildings, roads, farmlands.
Ground water contamination: Mining activity pollutes the ground water. Chemicals used in mining activity may pollute the water, some heavy metals leached into ground water and contaminate it.

11. Subsidence

12. Water Contamination

13. Surface water pollution: The acid mine drainage waste contaminates nearby rivers, streams and lakes. Such acidic water is detrimental for aquatic life, plants and people who consumes contaminated water.
Air Pollution: The suspended particles, sox, soot, arsenic, lead may be emitted in atmosphere which are dangerous for health
Noise pollution: Blasting activity and transporting vehicles cause noise disturbance to local residents and wild life.
Occupational Hazards: Most of miners suffer from various respiratory and skin diseases due to continuous exposure to SPM and toxic substances. They may suffer from silicosis, asbestosis.

14. Occupational Hazards

15. Activity Write a brief essays on the following topic
“Every source of energy has its limitation and problems”.

16. Assignment
What are the effects on environment due to extraction of mineral resources?
Write explanatory notes on
Over-Exploitation of Energy Resources