Global warming and climate change: Realities, uncertainties and measures
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This paper is an attempt to show that global warming and climate change are real, and are greatly
affecting the biosphere. Evidences suggesting that the increasing concentration of atmospheric
greenhouse gases due to human activities is mainly responsible for global warming and climate
change are presented. Uncertainties about the future course of global warming and climate change
centred on the role of two important mechanisms, forcings and feedback processes, and their
influence on earth’s surface temperature are also discussed. Suitable and innovative geo-engineering
measures that could make effective and efficient use of the scarce resources and maximize returns
from the resources invested to limit the emissions of greenhouse gases are evaluated. Preferred
actions to control and stabilize global warming and climate change which can be widely applied to
reorient economic developmental policies in developing countries are examined.
Keywords
Q Science (General), QC Physics