Now that Malaysia has a Ministry in charge of Green Technology, we need to understand what Green Technology is.
Wikipedia defines Green Technology as similar to Environment Technology or Clean Technology. This technology advocates sustainable development. As I have pointed before, the keyword to anything nowadays is sustainability. Sustainability involves the ability to maintain our natural resources so that they last forever, theoretically.
Sustainability is defined as the ability to meet the needs of society in ways that can continue indefinitely into the future without damaging or depleting natural resources. In short, present needs are satisfied without compromising the ability of our children’s generations to meet their own needs.
Activities that can promote sustainability are:
Recycling
Water Purification
Sewage Treatment
Environmental Remediation
Effluent Gas Treatment
Solid Waste Management
Renewable energy
Basically we need technologies that conserve energy or change consumption patterns to help reduce consumption as well as reduce the amount of waste produced by human activities.Renewable energy sources include wind energy and solar energy which are also clean, i.e. they do not pollute the atmosphere like coal and petroleum do.Renewable energy can also be harnessed from the waste generated from agricultural activities. This is also called biomass energy. Developed nations like Japan and Scandinavia are currently keen to help the Malaysian and Indonesian palm oil industry adopt the Clean Development Mechanism by converting the palm oil waste to biogas and compost. CDM activities provide additional sources of income for palm oil millers. The solid (empty fruit bunches) and liquid waste (effluent) both of which could be efficiently processed could lead to a sustainable development of various CDM projects in the mill.
Composting enables palm mills to achieve zero waste management as both the Empty Fruit Bunches (EFB) and Palm Oil Mill Effluent (POME) are converted to useful income generating by-products. The resulting organic compost could one day prove to be a more environment friendly and effective substitute to petroleum based fertilizer in the plantations.
Converting Biomass to energy is another green technology.In countries like India, the biogas is utilized as cooking gas.
Thus Green Technology also include:
Energy from alternative fuels
The urgent development of alternative fuels, is needed as a new means of generating energy and energy efficiency.
A substantial reduction of greenhouse gases is also possible, by using unleaded gasoline, biodiesel, solar energy, and alternative fuel vehicles, including plug-in hybrid and hybrid electric vehicles.
Green building
Green building encompasses everything from the choice of building materials, energy conservation, and to the location of the building.
Environmentally preferred purchasing
The government should also encourage innovation that involves the search for products with contents and methods of production that have the smallest negative impact on the environment, and should, by regulation be preferred in use for government projects.
Green chemistry
All invention, design and application of chemical products and processes must reduce or eliminate the use and generation of hazardous substances that is not environment friendly.
Nanotechnology involves the manipulation of materials at the scale of the nanometer, one billionth of a meter. The adoption of nanotechnology will transform the way that everything in the world is manufactured.
“Green nanotechnology” is the application of green chemistry and green engineering principles to this field.