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What is environment?
The expression “environment” can refer to different things:
- All atmosphere layers
- Land, water and air
- All living organisms and organic and inorganic matter
- Roads, works, buildings, facilities and structures
- Ecosystems and ecological relationships
- All economic and social conditions affecting the community
What is pollution?
Pollution refers to different sorts of contamination of land, air or water which, which changes the biological, chemical, thermal or aesthetic properties of water, land and air. Pollution can can make the land, air or water impure or noxious.
Sources of pollution can be:
- air pollutants
What is effluent?
Effluent refers to any material in a liquid, solid or gaseous form or a combination thereof that is being discharged from industrial activities or any other source and contains vapor, slurry or suspension.
What is hazardous substance?
Hazardous substance refers to a substance or a mixture of substances which due to its corrosive, chemical, toxic or radioactive nature is capable of causing adverse environmental effects.
What is waste?
Waste refers to any substance or object which is intended to be disposed and includes solid waste, liquid waste, industrial waste, nuclear waste and residues from all types of wastes.
What is the adverse of environmental effect?
The expression “adverse of environmental effect” refers to the impairment of or damage to the environment. It consists of:
- The damage to or impairment to human health and safety or to property or biodiversity.
- Any other adverse environmental effect as it can be specified in the regulations.
How do people adapt to climate change?
It is important that human beings adapt to the various impacts of climate change. This can be achieved by using technological methods such as consumption habit changes and coastal defenses. Human beings are already getting used to changes in climate and further efforts in adaptation will be necessary for the coming years.
How do humans contribute to climate change?
Most of the activities human beings are doing contribute to climate change since they do cause changes in the earth’s atmosphere either in aerosols, greenhouse gases or cloudiness. For instance, one of the largest contributions comes from fossil fuel burning which releases carbon dioxide gas.
What does "eutrophication" mean?
“Eutrophication” refers to the process where there is an excessive increase of nutrients such as nitrate and phosphate in water due to the depositing of untreated sewage. It is these nutrients that act as fertilizers which lead to abnormal proliferation of algae. The bacteria number that decomposes organic materials also increases due to an increase in algae population.
What type of environment damage does mercury pollution cause?
Mercury refers to a metal that contaminates mollusks, fish, crustaceans and other types of living organisms in lakes, rivers and seas. Mercury will accumulate on the food chain. Whenever human beings feed on contaminated animals, they will also get contaminated which may result in severe nervous system injuries. Some of the main sources of mercury pollution are substances that are derived from agriculture and industries and in the mining of gold.
What does "greenhouse" effect mean?
There are several gases that surround the earth. A huge percentage of radiation of the solar that gets to the earth is normally reflected back. Gases such as carbon dioxide which form a layer around the earth take in some of the heat. It is this heating of the earth by insulating that is referred to as the greenhouse effect.
What is climate change?
Global warming and climate change are normally used interchangeably. However, climate change is used to refer to both the rise in global temperatures due to activities of human beings and the several impacts it will have on the planet. These impacts can be a rise in sea levels, frequent storms and droughts, warming seas and melting of glaciers.