Environmental technology (abbreviated as envirotech) or green technology (abbreviated as greentech) or clean technology (abbreviated as cleantech) is the application of the environmental science to conserve the natural environment and resources, and to curb the negative impacts of human involvement.

Sustainable development is the core of environmental technologies. When applying sustainable development as a solution for environmental issues, the solutions need to be socially equitable, economically viable, and environmentally sound.

• Sample Technologies
  Energy Saving Modules
  Brushless Wound-Rotor Doubly-Fed Electric Machine
  Composting toilet
  Bioremediation
  Ocean Thermal Energy Conversion
  Solar power
  Hydrogen fuel cell
  Desalination Removing salt from ocean water so it’s usable as tap water
  Thermal depolymerization

The technologies include, but are not limited to, the following areas:

Recycling
Is a Worldwide Phenomenon, which is a basic application towards the concept of Green Technology. It shows and encourages people to reuse items that can be reusable. Items like saving Cans of food or drinks, Paper etc have been encouraged by the governing bodies around America and rest of the world, to be recycled so that it can be used in the future for several other purposes. It can thus help protect the environment and cause less waste/pollution.

Water Purification
The whole idea of having dirt/germ/pollution free water flowing throughout the environment. Many other phenomenons’ lead from this concept of Purification of water. Water Pollution is the main enemy of this concept, and various campaigns and activists have been organized around the world to help purify Water. Considering the amount of water usage that is under current consumptions, this Concept is of utter Importance.

Air Purification
With IIT, TERI, and learnings from NASA, it was discovered that there are three basic and common green plants, with which we can grow all the fresh air needed indoors to keep us healthy. We’ve also found that you can reduce the fresh air requirements into the building, while maintaining industry indoor air quality standards.

The three plants are:

Areca palm Areca palm is a plant which removes CO2 and converts it into oxygen. We need four shoulder-high plants per person, and in terms of plant care, we need to wipe the leaves every day in Delhi, and perhaps once a week in cleaner-air cities. We had to grow them in vermi manure, which is sterile, or hydroponics, and take them outdoors every three to four months.

Mother-in-Law’s Tongue Mother-in-law’s Tongue, which is again a common plant, and we call it a bedroom plant, because it converts CO2 into oxygen at night. And we need six to eight waist-high plants per person.

Money Plant. This is again a very common plant; preferably grows in hydroponics. And this particular plant removes formaldehyde and other volatile chemicals.

With these three plants, you can grow all the fresh air you need. In fact, you could be in a bottle with a cap on top, and you would not die at all, and you would not need any fresh air.

Sewage Treatment
Sewage Treatment is a concept that is really close to Water Purification. Sewage Treatments are very important as it purifies water in levels of its pollution. The more the water is polluted, it’s not used for anything, the least polluted water is supplied to places where Water is used affluently. It may lead to vaious other concepts of environmental protection, sustainability etc.

Environmental remediation
Environmental remediation is the removal of pollutants or contaminants for the general protection of the environment. This is accomplished by various chemical, biological, and bulk movement methods, in conjunction with environmental monitoring. (encyclopedia of medical concepts)

Solid Waste Management
The purification, Consumption, Reuse, Disposal and Treatment of solid waste that is looked after by the government or the ruling bodies of a city/town and its proper care is basically known as Solid Waste management.

Renewable Energy
Energy that can be replenished easily is the easiest way to explain renewable energy. For years we have been using sources like wood, sun, water etc for means for producing energy. Energy that can be produced by natural objects like wood, sun, wind etc is considered to be renewable.

Egain Forecasting
A method using forecasting technology to predict the future weather’s impact on a building. By adjusting the heat based on the weather forecast, the system eliminates redundant use of heat, thus reducing the energy consumption and the emission of greenhouse gases.

Alternative and clean power

Scientists continue to search for clean energy alternatives to our current power production methods. Some technologies such as anaerobic digestion produce renewable energy from waste materials. The global reduction of greenhouse gases is dependent on the adoption of energy conservation technologies at industrial level as well as this clean energy generation. That includes using unleaded gasoline, solar energy and alternative fuel vehicles, including plug-in hybrid and hybrid electric vehicles.

Since electric motors consume 60% of all electricity generated[citation needed], advanced energy efficient electric motor (and electric generator) technology that are cost effective to encourage their application, such as the brushless wound-rotor doubly-fed electric machine and energy saving module, can reduce the amount of carbon dioxide (CO2) and sulfur dioxide (SO2) that would otherwise be introduced to the atmosphere, if electricity is generated using fossil fuels. Greasestock is an event held yearly in Yorktown Heights, New York which is one of the largest showcases of environmental technology in the United States.