RT null
T1 The State of the World Environment 1987
A1 United Nations Environment Programme, 
K1 environmental quality
K1 air quality
K1 water quality
K1 marine environment
K1 land
K1 terrestrial ecosystem
K1 development
K1 environment
K1 population
K1 human settlement
K1 transport
K1 tourism
K1 agricultural production
K1 food production
K1 industrial development
K1 energy resource
SN 92 807 1134 2
YR 1987
FD 1987
LK https://wedocs.unep.org/handle/20.500.11822/28274
UL https://wedocs.unep.org/handle/20.500.11822/28274
NO Over the past five years, there has been a marked improvement in the quality of the data base in certain fields and in our understanding of some environmental phenomena like the possible depletion of the ozone layer or the possible climatic changes due to increases in carbon dioxide and other greenhouse gases. At the same time, however, there are still startling gaps and a particular lack of reliable quantitative information about the environment in the developing countries.
DS UN Environment Document Repository
RD Sep 20, 2026