The question of a gradually changing climate due to Man's emissions of ‘greenhouse’ gases has now become a major political issue. Scientific assessments during the early 1980s, and an international conference in Villach in Austria in October 1985, brought this issue firmly onto the political agenda. The World Commission on Environment and Development, popularly referred to as the ‘Brundtland Commission’, presented its final report to the United Nations in 1987, and their General Assembly discussed, on that basis, the matter of a Man-induced global change of climate for the first time in the autumn of 1987.

As a result of the foregoing study, the following conclusions are reached: (A) The solar–hydrogen energy system is environmentally far more compatible than the fossil-fuel system; it is actually the only solution for the carbon-dioxide-induced ‘greenhouse’ effect and its threatening consequences. (B) The utilization efficiencies of hydrogen are greater than those of fossil and synthetic fossil fuels; therefore, in the hydrogen-energy system, less energy will be required to perform the same services. (C) The solar-hydrogen energy system is the most cost-effective system if effective costs (the costs which society pays for the energy services) are taken into account. It is not only more cost-effective than the synthetic fossil-fuel system—it is even more cost-effective than the present fossil-fuel system. (D) Clean coal technologies could be used for thermal-energy generation, satisfying approximately 30% of the world's total energy needs. Such a system, which employs coal for thermal-energy generation, and hydrogen from renewable energy sources in electricity generation and transportation sectors, would be the least-cost energy system for the transition period. (E) Transition to the solar–hydrogen energy system could help to save our economy and our planet.

The fuels that are being most favourably considered for the post-petroleum and natural-gas era, namely hydrogen (both gaseous and liquid) and coal and coal-derived synthetic fluid fossil-fuels, have been compared in this paper by taking into account production costs, external costs, and utilization efficiencies. The results show that hydrogen is a much more cost-effective energy carrier than coal or synthetic fossil-fuels. At the same time, and most importantly by far from our viewpoint, it is the most environmentally compatible of all.

In a study that was recently completed at Resources for the Future, the impacts of a future change in climate on the total economy of the Missouri–Iowa–Nebraska–Kansas (MINK) region were assessed, as were the possibilities of response (including adaptation) to the climatic change. Impacts on agriculture, forestry, water resources, and energy, were emphasized. The study was future-oriented, focusing on the year 2030, by which time the effects of ‘greenhouse’ warming may be felt. The records of the AD 1930s were used to provide an analog of the kinds of climate change (warmer and drier) that climate models predict will occur in the MINK region.

Our results indicate that impacts of the projected climate change on agriculture, at least in the future, are expected to be profound, but that likely-to-be available technologies should facilitate substantial adaptation; that current water-resource limitations in the region would be exacerbated and lead to an eastward shift in irrigation; that impacts on forestry would be severe, and that opportunities for forestry adaptation would be very limited unless biomass production were to become economically viable; and that the net impacts on energy supply and demand would be small and adaptation to them relatively simple.

Climate change in the MINK region could, of course, go somewhat beyond the conditions represented by the AD 1930s analog, in which case the findings of this study may be too optimistic. However, the future-oriented ‘MINK methodology’ is not scenario-dependent, and can be used to test other, more severe (or benign), scenarios as well. Further, the capacity for adaptation to climate change demonstrated in this study, may remain applicable even in more stringent circumstances.

Effective implementation of conservation and development strategies, such as buffer zones adjacent to national parks, requires tailoring these strategies to a park's individual external situation. A methodology is presented for conducting an assessment of adjacent land and local population issues for national parks. The methodology covers three principal subjects: (1) biological conservation issues, (2) the relationship between the park and local people, and (3) the socioeconomic situation of park neighbours.

The methodology was applied to lands adjacent to Braulio Carrillo National Park, Costa Rica. The application provides a brief summary of the Park's external situation, for use in management and planning, and identifies the most effective types of conservation and development strategies for the region. In this case, the methodology identified the principal issue facing the Park as being the rapid conversion of lowland forest to pasture on lands adjacent to the Park. Solutions to this problem include stopping the cycles of migration and colonization that drive people to settle forested lands, and increasing the importance of forest in local land-use systems.

Australia possesses a distinctive national parks and conservation reserves system, in which it is the State Governments rather than the Federal Government which owns, plans, and manages, national parks and other conservation reserves.

Most Australian States declared their first national parks in the latter quarter of last century, Australia's first national park being declared in New South Wales in March 1879. These critical declarations were followed by a slow accumulation of parks and reserves through to 1968. The pace of acquisition then quickened dramatically with an eight-fold expansion in the total area of national parks between 1968 and 1990, at an average rate of over 750,000 ha per annum. The present Australian system contains 530 national parks covering 20.18 million hectares or 2.6% of the land-mass. A further 28.3 million hectares is protected in other parks and conservation reserves. In terms of the percentage of their land-mass now in national parks, the leading States are Tasmania (12.8%) and Victoria (10.0%), with Western Australia (1.9%) and Queensland (2.1%) trailing far behind, and New South Wales (3.92%) and South Australia (3.1%) lying between.

The Australian system is also compared with the Canadian and USA systems. All three are countries of widely comparable cultures that have national parks covering similar percentage areas, but Canada and the USA have far fewer national parks than Australia and they are in general of much greater size. In addition, Canada and the USA ‘resource’ these parks far better than the Australians do theirs. The paper concludes that Australia needs to rationalize its current system by introducing direct funding, by the Federal Government, of national park management, and duly examining the whole system of reserves from a national rather than States' viewpoint.

The total population of Indus Dolphins, numbering perhaps 500 individuals, is subdivided by barrages into five or six subpopulations. At least two of these are so small (fewer than 20 animals) that they have little chance of survival past the next few decades. If dispersal occurs at all, because of barrages it will apparently only be downstream, causing a net loss to upstream subpopulations. The subpopulation in Sindh Dolphin Reserve, between Sukkur and Guddu barrages, is relatively large and apparently well-protected. However, the small size of the Reserve, its geographical position near the downstream end of the species range, and the political and economic instability of the area, taken together, mean that this subpopulation is at considerable risk. The need for additional reserves upstream of Guddu Barrage, to improve the prospects of the species' survival, is clear.

The subpopulation downstream of Taunsa and Panjnad barrages is unquestionably the largest in Punjab, and its protection should be a high priority of the Punjab Government. Apart from the obvious need to prevent both direct capturing and accidental killing, the Dolphins' aquatic habitat must be carefully safeguarded. Any additional withdrawal of water from the Indus and its tributaries, whether for agriculture or industry, would be inimical to Dolphin conservation. Moreover, any project involving changes to the river system's hydrography and water-quality, even if expected to have no net effect on discharge levels in the main channels, should be evaluated critically for the potential impact on Dolphins.

It is important to emphasize that responsibility for the fate of Indus Dolphins and the many other organisms affected by major water-development schemes, is shared by a number of countries in addition to Pakistan. We hope that foreign governments, in their efforts to support Pakistan's economic development and relieve poverty in the subcontinent by assisting in the planning and financing of water megaprojects, do not in the process contribute to the impoverishment of the client country's, and in turn the world's, ecological heritage.

In September 1988, more than 300 participants attended the First International Forum on the Future of the Beluga, held in Tadoussac, Quebec, Canada. This Forum, organized by the ‘Fondation pour la Sauvegarde des Espèces Menacées’ (FOSEM), was intended to contribute to the development and the implementation of a survival strategy for the endangered St Lawrence population of the White Whale or Beluga (Delphinapterus leucas) by bringing together representatives of all the parties concerned. Exceeding all expectations, this event caught the attention of the press and the general public in such a way that the White Whale of the St Lawrence became a prominent symbol of our growing concern for environment in eastern Canada.

This paper is intended to present an overview of the facts and efforts that contributed to the success of the First International Forum on the Future of the Beluga as a casestudy showing how contributions from NGOs and the general public can help to improve the situation of an endangered species and the prospect of stabilization of that part of the human environment of which it has formed a prominent feature from time immemorial.