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Abstract
Earth is made inhabitable by a layer of greenhouse gases (GHGs) present in the atmosphere which reflect sun radiations back to the Earth’s surface. GHGs, such as carbon dioxide, water vapor, methane, nitrous oxide, ozone and fluorocarbons act as natural temperature regulators. In the past century, the GHGs layer has become thicker, and it has resulted in continuous increase in temperature i.e. global warming. Due to human activities in the recent years, the concentration of GHGs is increasing at very fast pace. The increase in concentration of GHGs has an alarming impact on the environment. Global warming results in melting of the glaciers/ice caps and causes rise in sea levels, droughts, hurricanes, floods, forest fires with greater rage, which are threatening fragile eco-systems and affecting migration of species. The increasing anthropogenic concentration of carbon dioxide in the atmosphere has resulted in ocean acidification threatening marine ecosystems (Buseck and Posfai 1999).
Published Version
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