From the specific framing of sustainable development in Our Common Future,
therefore, environmental problems that threaten human need satisfaction, today or
in the future, are the subject of sustainable development. Environmental problems
that endanger the natural systems that support life on Earth – the atmosphere,
waters, soils and the living beings – relate to sustainable development.
Accordingly, the environment, which is vulnerable to destruction through devel-
opment, is itself part of the sustainable development agenda.
The global challenges of sustainable development
In the follow-up UNCED process, Agenda 21, adopted at the Rio Conference in
1992, addressed a number of issues under the umbrella of sustainable develop-
ment. The first section of Agenda 21 addressed the social and economic dimen-
sions of sustainable development under the headings of international cooperation,
combating poverty, changing consumption patterns, demographic dynamics,
protecting and promoting human health, promoting sustainable human settlement
development and integrating environment and development in decision-making.
The second section was called ‘Conservation and management of resources for
development’, and focused on the atmosphere, land resources, deforestation,
fragile ecosystems, agriculture and rural development, conservation of biological
diversity, biotechnology, protection of the oceans, freshwater resources, toxic
chemicals, hazardous wastes, solid wastes and radioactive wastes (United
Nations, 1993: Chapter 9–22).
All the above problems are no doubt important sustainable development issues.
There are, however, two environmental problems in particular that were seen as
crucial to sustainable development in Our Common Future: climate change and
loss of biological diversity. Of the ‘Rio Accords’, these problems were the only
problems that materialized as international Conventions and thus ‘hard law’.
These issues are not solely environmental issues but sustainable development
issues. In both cases, development conflicts with the environment. Climate
change and loss of biodiversity may threaten human need satisfaction, today or in
the future, both problems may endanger the natural systems that support life on
Earth, and both problems are closely associated with development itself.
Climate change implies the potential for human activities to alter the Earth’s
climate to an extent unprecedented in human history with severe but also unpre-
dictable and unknown consequences for humans and ecosystems. Loss of biolog-
ical diversity is perceived as a global problem that presents a conflict between the
short-term economic interests of nations and the long-term interests of sustain-
able development (WCED, 1987: 160). The dilemma is, of course, that given the
first priority of sustainable development (meeting the essential needs of the
world’s poor, to which overriding priority should be given) and expected popula-
tion growth rates, ‘a five- to tenfold increase in manufacturing output will be
needed just in order to raise developing-world consumption of manufactured
goods to industrialised world levels by the time population growth rates level off
next century’ (WCED, 1987: 15).
22 Oluf Langhelle, Bjørn-Tore Blindheim and Olaug Øygarden