We live in an independent world of increasing risks. Thirty-three years ago, the Russel-Einstein Manifesto warned humanity that our survival is imperiled by the risk of a nuclear war. The familiar challenges identified in that Manifesto and the 1982 Warsaw Declaration of Nobel Laureate remains important as ever. But in the spirit of the Russel-Einstein Manifesto, we now call on all scientists to expand our concerns to a broader set of interrelated dangers: destruction of the environment on a global scale and denial of basic needs to a growing majority of humankind. Without reducing our commitment to arms reduction and war prevention, we must recognized that environmental degradation and large-scale impoverishment are already facts and can lead to a massive catastrophe even in a nuclear war is avoided.
The present inequitable economic order confines many countries to the crushing cycle of poverty and induces them to use environmentally destructive industrial and agricultural practices. When coupled with worldwide population growth, and excessive production and profligate consumerism in the industrial nations, this is pushing the planet towards disaster.
Today's pattern of increasing energy use is a key link in dangerous web of international environmental problems. Among these are global climate change, ozone depletion, acid deposition, and water pollution. These, combined with other potentially catastrophic effects, including deforestation, soil erosion, and mass extinction of species, reduce the earth's ability to support a growing population. The combined effect diminishes ecosystem function in ways that will damage economies in North and fatally undermine economies in the South.
These linked environmental problems affect all nations. They exacerbate international tensions and increase the risk of future conflicts through the impacts of sea-level, forced migrations, and persistent crop failures.
To survive, we must recognize that environmental degradation weakens the security of all. The challenge is to find way to promote sustainable development of all region in the world while reducing both military and ecological threats. Cooperation among nations, and effective organization at the international, national, regional and local levels, are essential to maintain earth's life support systems. Intense efforts must be made to foster a feeling of connectedness and cooperation, and to correct economic injustices and promote trust.
The steps taken up to the present to halt environmental destruction have proved inadequate. Much stronger measures are required now.
These include the development of alternative high yield agricultural methods, while recognizing the value of some traditional practices, in order to conserve scarce water and topsoil. They will also entail strict regulation of industry and land-use, and massive investment in environmentally sound practices, increased efficiency of resource use, deployment of renewable energy technologies, poverty reduction, and population planning.
Education must promote a shift towards life-styles compatible with the preservation of our life-support systems. Global use of fossil fuels must be reduced.
The 1987 Montreal Protocol on Ozone Depletion must be strengthened to eliminate the production and the use of chlorofluorocarbons.
International support for reforestation must be increased dramatically. In this way the planet may move towards a new stable balance in which nature can withstand the impacts of human civilization.