9. The phenomenon of heat build up inside a glass
chamber from the absorption of solar radiation is
called green house effect
10.
11.
12.
13.
14. Green house Gases : Gas that can absorb & emit
infrared Radiation
Sources and Causes
Carbon dioxide (CO2) : Burning of fossil fuels,
deforestation
Chlorofluorocarbons(CFCs) : Refrigeration, solvents,
insulation foams, aero propellants, industrial and commercial
uses.
Methane (CH4) : Growing paddy, excreta of cattle and
other livestock, termites, burning of fossil fuel, wood, land
fills.
Nitrogen oxides (N2O): Burning of fossil fuels, fertilizers;
burning of wood and crop residue.
15. Factors that determine the degree to which any GHG will
influence global warming
1. Abundance
2. Ability to absorb energy (global warming potential)
3. Life (How long it stays in atmosphere)
16. Global warming potential (GWP)
A measure of a total energy that gas can absorbs over
period of time (usually 100 years) compared to CO2
LargertheGWP, more Warming the gas causes
- CO2 - 1 lifespan -50-200
- CH4 – 21 - 12
- N2O - 300 - 120
- F gases (HFC , PFC, SF6)- High GWP gases -270 50000
31. Bad ozone Human actions cause chemical reactions between
oxides of nitrogen (NOx) and volatile organic compounds (VOC).
32. Important ozone depleting
chemicals and their use
CFCs - Refrigeration, aerosol, foam, food freezing,
warming devices, cosmetics, heat detectors solvents,
cosmetics, refrigerants, fire fighting
Halon - Fire fighting
HCFC-22 - Refrigeration, aerosol, foam, fire fighting
Methyl chloroform - Solvent
Carbon tetrachloride - Solvent
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56. Which one of the following fuels causes minimal
environmental pollution? (1995)
a) Diesel
b) Coal
c) Hydrogen
d) kerosene
57.
58.
59.
60.
61.
62.
63.
64.
65.
66. Consider the following statements:
CFC as ODS ,are used
1 In the production of plastic foams
2 In the production of tubeless tyres
3 In cleaning certain electronic components
4 As pressurizing agents in aerosol cans
which of the statements given above is/are correct
A 1, 2 and 3 only
B 4 only
C 1,3 and 4 only
D 1,2,3 and 4
67. Eco. Survey 2013-14
Joint Announcement by US & china in November 2014
-US intends to reduce 26-28% below it’s 2005 level in 2015
-China intends to achieve increase the share of non fossil fuels in
primary consumption to 20 % by 2030
Clean Energy Cess : 200 per tonne
Only fossil fuel & cement
1 china
2 US
3 EU
68.
69. Renewable Energy in India – 33.8 GW
Highest share by wind , Biogas , Small hydro power &
solar power
National Adptaion Fund – 1000 crore
77. Criticism of Lima
Nothing Binding
No funding
$100 m by 2020 : but no roadmap
hardly $10bn pledged in Lima
no definition for loss & damage
Documentation
Media
