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Global
warming and climate change: realities, uncertainties and
measures
A. P. Aizebeokhai
Department of Physics, CST Covenant University, Canaan Land,
Ota, Nigeria.
E-mail:
Philips_a_aizebeokhai@yahoo.co.uk.
Accepted 5 November, 2009. |
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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.
Key words:
Global warming, climate change, greenhouse gases,
uncertainties, feedback mechanisms, measures. |
