What is human activity?

  • (noun): Something that people do or cause to happen.
    Synonyms: act, human action

Some articles on human activity, human, humans:

Anthropogenic Greenhouse Gases
... Since about 1750 human activity has increased the concentration of carbon dioxide and other greenhouse gases. 20 times greater than sources due to human activity, but over periods longer than a few years natural sources are closely balanced by natural sinks, mainly photosynthesis of carbon compounds by plants and marine ... human-induced) warming, such as that due to elevated greenhouse gas levels, has had a discernible influence on many physical and biological systems ...
Lake Piso - Human Activity
... Human activity in Lake Piso includes fishing and water sports such as swimming, canoeing and water skiing ...
Peter Doran
... that active climate researchers almost unanimously agree that humans have had a significant impact on the Earth's climate ... risen, fallen, or remained relatively constant? 2 Do you think human activity is a significant contributing factor in changing mean global temperatures? 90% of the Earth scientists who ... question, 82% of the Earth scientists replied that that human activity had significantly contributed to the warming ...
Scientific Consensus On Global Warming - Surveys of Scientists and Scientific Literature
... had increased during the past 100 years 84% said they personally believed human-induced warming was occurring, and 74% agreed that "currently available scientific evidence. 5% said they thought human activity did not contribute to greenhouse warming ... Seventy-five of 77 believed that human activity is a significant factor in changing mean global temperatures ...
Balance Of Nature - Human Intervention
... Although some conservationist organizations argue that human activity is incompatible with a balanced ecosystem, there are numerous examples in history ... Possibly one of the best examples of an ecosystem fundamentally modified by human activity can be observed as a consequence of the Australian Aboriginal practice of "Fi ...

Famous quotes containing the words activity and/or human:

    In literary circles, the men of trust and consideration, bookmakers, editors, university deans and professors, bishops, too, were by no means men of the largest literary talent, but usually of a low and ordinary intellectuality, with a sort of mercantile activity and working talent. Indifferent hacks and mediocrities tower, by pushing their forces to a lucrative point, or by working power, over multitudes of superior men, in Old as in New England.
    Ralph Waldo Emerson (1803–1882)

    I am secretly afraid of animals.... I think it is because of the usness in their eyes, with the underlying not-usness which belies it, and is so tragic a reminder of the lost age when we human beings branched off and left them: left them to eternal inarticulateness and slavery. Why? their eyes seem to ask us.
    Edith Wharton (1862–1937)