It refers to organized efforts to teach about how natural environment function and, particularly, how human beings can manage their behavior and ecosystems in order to live sustainably.

 is defined as an attempt to control human impact on and interaction with environment to preserve natural resources. It focuses on the improvement of human welfare for present and future generations.

is to reduced risks to the environment from contaminants such as hazardous materials and wastes, fuels, and oils.

’ refers to the application of scientific knowledge for practical purposes and the machinery and devices developed as a result.

is the movement of materials and human beings from one place to another.

 is defined the warming of the earth's lower atmosphere because of increases in the concentrations of one or more greenhouse gases primarily as a result of one or more changes in any aspects of the earth's including temperature, precipitation and storm activity.

moderation or postponement of global climate change through measures that reduce greenhouse gases emission

planned response to changes caused by global climate change.

 refer to laws and rules which deal with pollution control and the regulation of activities which could affect the environment.

includes all the policies, strategies and activities to sustainably manage the natural resource of fresh water, to protect the hydrosphere, and to meet the current andfuture human demand.

Under this category are underground activities such as counterfeiting, money laundering, large-scale smuggling, inter-oceanic poaching and commercial dumping.

It has become another threat to our national security by virtue of the huge scale by which it saps public resources, undermines the morale of the civil service and affects the delivery of quality basic services. It has also become a disincentive to investment.

They cause serious food shortages, abet hoarding and profiteering and cause hunger, disease and deprivation.

This is a growing global threat, as experienced with computer viruses such as Melissa and Chernobyl, which have attacked isolated or networked information systems through the internet or through software carriers and devices.

This is a threat to global security.