Unreasonable hope for Rio fades
Article Abstract:
The UN Conference on Environment and Development, to be held in Rio de Janeiro, Brazil, in Jun 1990, will probably fail to agree on how to deal with international environmental problems such as global warming. The inability to agree on an agenda suggests that expectations for the Conference are unrealistically ambitious. However, global warming remains a serious threat that should be the Conference's primary concern. An acknowledgment by all participating countries that global warming must be halted is a feasible and desirable outcome.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
There's safety in numbers
Article Abstract:
Satellite observations by Russell and associates showing that CFCs are the dominant source of chlorine in the stratosphere will silence the opponents to the Montreal Protocol. Data show that 90% of the chlorine is in the form of HCl and 80% of the fluorine takes the form of HF. The average time for CFCs to cross 55 kms in the atmosphere is 5.9 years. CFCs are the source of about 80% chlorine, whereas volcanoes and sea spray contribute only 5%. Chlorine monoxide is the main ozone destroyer.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Hiding from the midday Sun
Article Abstract:
The European Arctic Stratospheric Ozone Experiment found evidence that stratospheric ozone levels over the northern latitudes decrease between December and February. This result, though widely misinterpreted by the press, should add impetus to international efforts to control chlorofluorocarbons (CFC), the gases that deplete ozone. The 'Earth Summit' due to start in the summer of 1992 should consider the idea of discouraging CFC pollution through taxation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Foreshadowing the glacial era. The great ice mystery. Respiration in the balance
- Abstracts: Of fingers, toes and penises. The quirks of jerks. Asymmetric toes aid underwater swimming
- Abstracts: Decisions, decisions... The best supporting actors. Colour my i's blue
- Abstracts: Research with fetal tissue. The future of research in medicine. Need for public debate about fertility treatments
- Abstracts: Reversal ideas up-ended. Three's a crowd in California. Tilt and northward offset of Cordilleran batholiths resolved using igneous barometry