890
K. M. G. Mostofa et al.
GWPs Global warming potentials
H 2 O 2
Hydrogen peroxide
IPCC
Intergovernmental Panel on Climate Change
Kyr
Kilo year (1000 year)
CH 4
Methane
OM
Organic matter
NH 4
+
Ammonium
NO 2
−
Nitrite
NO 3
−
Nitrate
POM
Particulate organic matter
PO 4
3−
Phosphate
UNFCCC
United Nations Framework Convention on Climate Change
UV
Ultraviolet
Yrs
Years
Problems
(1) What is global warming? List the atmospheric greenhouse gases and other
constituents which contribute to global warming.
(2) Explain how atmospheric greenhouse gases increase global warming.
(3) Explain how the atmospheric sulfate aerosols could reduce the global
warming.
(4) Explain how the stratospheric ozone depletion affects global warming and
natural water chemistry.
(5) Explain the contributions of atmospheric greenhouse gases to global
warming.
(6) What is radiative forcing by greenhouse gases? Explain how global warming
potentials become indicators of global warming.
(7) How are the environmental processes of greenhouse gases emission affected
by global warming? Explain how global warming enhances the soil respiration that releases atmospheric greenhouse gases.
(8) Explain the various processes of CO 2 emission during agricultural activities.
(9) How does deforestation affect global warming?
(10) Explain where and why the emissions of CO 2 occur by photoinduced degradation of DOM in natural waters.
(11) What are the possible impacts of global warming on physical, chemical and
biological processes in natural waters?
(12) Explain how does global warming affect photoinduced and microbial activities in natural waters.
(13) Explain how does global warming affect photosynthesis and primary productivity in natural waters.
(14) Explain why and how does global warming impact on waters with high contents of DOM.