Some 1,700 of the world's leading scientists, including the majority of Nobel laureates in the sciences, issued this appeal in November 1992. The
Warning was written and spearheaded by UCS Chair Henry Kendall.
I find it strange, This warning was issued in 1992! and more than 16 years later we are sitting with the same problems on a larger scale. Why did
This will be a large thread so be prepared to do some heavy reading. Bellow is the warning issued by world scientists, I just stubled across it so it
is not my writings. Im copy and pasting the warning and will provide a link below.
Warning issued November 18, 1992
Warning To Humanity
"Human beings and the natural world are on a collision course. Human activities inflict harsh and often irreversible damage on the environment
and on critical resources. If not checked, many of our current practices put at serious risk the future that we wish for human society and the plant
and animal kingdoms, and may so alter the living world that it will be unable to sustain life in the manner that we know. Fundamental changes are
urgent if we are to avoid the collision our present course will bring about."
The environment is suffering critical stress:
Stratospheric ozone depletion threatens us with enhanced ultraviolet radiation at the earth's surface, which can be damaging or lethal to many life
forms. Air pollution near ground level, and acid precipitation, are already causing widespread injury to humans, forests and crops.
Heedless exploitation of depletable ground water supplies endangers food production and other essential human systems. Heavy demands on the world's
surface waters have resulted in serious shortages in some 80 countries, containing 40% of the world's population. Pollution of rivers, lakes and
ground water further limits the supply.
Destructive pressure on the oceans is severe, particularly in the coastal regions which produce most of the world's food fish. The total marine catch
is now at or above the estimated maximum sustainable yield. Some fisheries have already shown signs of collapse. Rivers carrying heavy burdens of
eroded soil into the seas also carry industrial, municipal, agricultural, and livestock waste -- some of it toxic.
Loss of soil productivity, which is causing extensive Land abandonment, is a widespread byproduct of current practices in agriculture and animal
husbandry. Since 1945, 11% of the earth's vegetated surface has been degraded -- an area larger than India and China combined -- and per capita food
production in many parts of the world is decreasing.
Tropical rain forests, as well as tropical and temperate dry forests, are being destroyed rapidly. At present rates, some critical forest types will
be gone in a few years and most of the tropical rain forest will be gone before the end of the next century. With them will go large numbers of plant
and animal species.
The irreversible loss of species, which by 2100 may reach one third of all species now living, is especially serious. We are losing the potential they
hold for providing medicinal and other benefits, and the contribution that genetic diversity of life forms gives to the robustness of the world's
biological systems and to the astonishing beauty of the earth itself.
Much of this damage is irreversible on a scale of centuries or permanent. Other processes appear to pose additional threats. Increasing levels of
gases in the atmosphere from human activities, including carbon dioxide released from fossil fuel burning and from deforestation, may alter climate on
a global scale. Predictions of global warming are still uncertain -- with projected effects ranging from tolerable to very severe -- but the potential
risks are very great.
Our massive tampering with the world's interdependent web of life -- coupled with the environmental damage inflicted by deforestation, species loss,
and climate change -- could trigger widespread adverse effects, including unpredictable collapses of critical biological systems whose interactions
and dynamics we only imperfectly understand.
Uncertainty over the extent of these effects cannot excuse complacency or delay in facing the threat.
The earth is finite. Its ability to absorb wastes and destructive effluent is finite. Its ability to provide food and energy is finite. Its ability to
provide for growing numbers of people is finite. And we are fast approaching many of the earth's limits. Current economic practices which damage the
environment, in both developed and underdeveloped nations, cannot be continued without the risk that vital global systems will be damaged beyond
Pressures resulting from unrestrained population growth put demands on the natural world that can overwhelm any efforts to achieve a sustainable
future. If we are to halt the destruction of our environment, we must accept limits to that growth. A World Bank estimate indicates that world
population will not stabilize at less than 12.4 billion, while the United Nations concludes that the eventual total could reach 14 billion, a near
tripling of today's 5.4 billion. But, even at this moment, one person in five lives in absolute poverty without enough to eat, and one in ten suffers
No more than one or a few decades remain before the chance to avert the threats we now confront will be lost and the prospects for humanity
[edit on 06/10/2009 by jinx880101]