The danger is that global warming may become self-sustaining, if it has not done so already. The melting of the Arctic and Antarctic ice caps reduces the fraction of solar energy reflected back into space, and so increases the temperature further. Climate change may kill off the Amazon and other rain forests, and so eliminate once one of the main ways in which carbon dioxide is removed from the atmosphere. The rise in sea temperature may trigger the release of large quantities of carbon dioxide, trapped as hydrides on the ocean floor. Both these phenomena would increase the greenhouse effect, and so global warming further. We have to reverse global warming urgently, if we still can.
Stephen HawkingRelated topics
amazon antarctic arctic atmosphere carbon change climate danger dioxide done floor fraction greenhouse ice increase kill large ocean off once rain release rise sea solar space temperature trap trigger warming global caps waysRelated quotes
Mill, in speaking of Hume's celebrated principle, "that nothing is credible which is contradictory to experience, or at variance with the laws of nature," calls it a very plain and harmless proposition, being, in effect, nothing more than that whatever is contradictory to a complete induction is incredible. Admit the existence of a Deity, and the possibility of a miracle is the natural consequence. No doubt our examination of the evidence which sustains an unusual phenomenon should be most carefully conducted; but we must not measure the credibility or incredibility of an event by the narrow sphere of our own experience, nor forget that there is a Divine energy which overrides what we familiarly call the laws of nature.
Charles Babbage
First he must gain control over his thoughts, the progeny of the restless, unruly mind, hard to curb as the wind. (Bhagavad Gitâ, vi. 34). Steady, daily practice in meditation, in concentration, had begun to reduce this mental rebel to order ere he entered on the probationary Path, and the disciple now works with concentrated energy to complete the task, knowing that the great increase in thought power that will accompany his rapid growth will prove a danger both to others and to himself unless the developing force be thoroughly under his control. Better give a child dynamite as a plaything, than place the creative powers of thought in the hands of the selfish and ambitious.
Annie Besant
Egoism and altruism are ideas we have about human nature. Historically, one has tended to arise in response to the other. In the ancient world, for example, it is generally in the times and places that one sees the emergence of money and markets that one also sees the rise of world religions-Buddhism, Christianity, and Islam. If one sets aside a space and says, "Here you shall think only about acquiring material things for yourself," then it is hardly surprising that before long someone else will set aside a countervailing space and declare, in effect: "Yes, but here we must contemplate the fact that the self, and material things, are ultimately unimportant."
David Graeber
Why... are there any market transactions at all? Why not all production carried on by one big firm?... First, as a firm gets larger, there may be decreasing returns to the entrepreneur function, that is, the costs of organizing additional transactions within the firm may rise... Second, it may be that as the transactions which are organized increase, the entrepreneur fails to place the factors of production in the uses where their value is greatest, that is, fails to make the best use of the factors of production... Finally, the supply price of one or more of the factors of production may rise, because the "other advantages" of a small firm are greater than those of a large firm.
Ronald Coase
There is another and higher leadership, that of the intellect, by which the methods and thoughts of one man may affect the whole civilized world. Industrial leaders who have most prominently attracted our attention in the past are those who have, by their inventions or their direction of activities, accumulated large fortunes; but none of these are as great as the man who by the force of his intellect leads people throughout the civilized world to benefit themselves and others. Such a man was the late Frederick Winslow Taylor who, in his determination to eliminate error and to base our industrial relations on fact, set an example which will have an effect all over the world.
Henry Gantt