Emissions resulting from human activities are substantially increasing the atmospheric concentrations of the greenhouse gases, carbon dioxide, methane, chlorofluorocarbons (CFCs) and nitrous oxide. These increases will enhance the greenhouse effect, resulting... Defining National Security: The Nonmilitary Aspects - Page 17by Joseph J. Romm - 1993 - 122 pagesFull view - About this book
| Environmental protection - 1990 - 412 pages
...product of work by hundreds of experts worldwide. The IPCC First Assessment Report6 concluded that emissions resulting from human activities are substantially increasing the atmospheric concentrations of gases that trap heat in the atmosphere and that these increases will enhance the atmosphere's natural... | |
| Joel S. Levine - Nature - 1991 - 612 pages
...the report. The report's Executive Summary states that "emissions resulting from human Introduction activities are substantially increasing the atmospheric...enhance the greenhouse effect, resulting on average in an additional warming of the Earth's surface. The main greenhouse gas, water vapor, will increase in... | |
| Science - 1992 - 260 pages
...There is a natural greenhouse effect which already keeps the Earth warmer than it would otherwise be. Emissions resulting from human activities are substantially...enhance the greenhouse effect, resulting on average in an additional warming of the Earth's surface. The main greenhouse gas, water vapour, will increase... | |
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