Natural Climate change The rotation of the earth Volcanoes Change in ocean currents Solar cycles and sunspots
Humancauses Power plants 2.Cars 3.Fertilizers 4.Deforestation 5.Ozone depletion
GREENHOUSE EFFECT The greenhouse effect occurs when certain gases in the atmosphere trap infrared radiation. This effect makes the planet warmer. When their is more greenhouse gases in the air, the air holds more heat. This is why more greenhouse gases cause global warming.
GREENHOUSE GASES The greenhouse effect is caused due greenhouse gases such as :
Carbon dioxide (co2)
Carbon dioxide (CO2):
Fossil fuels burning, especially coal (70-75%)
Deforestation and plant burning (20-25%).
Average time in the troposphere is 50-500 years.
LAYERS OF ATMOSPHERE
Rice paddies, guts of cattle and termites , coal production and natural gas leaks from oil and gas production andpipelines.
Average time of methane in troposphere is 9-15 years.
Chlorofluorocarbons : Air-conditioners, refrigerators, plastic foams. Average time in troposphere is 11-20 years.
Nitrous oxide (N2O) :
Fossil fuel burning, fertilises, live-
stock wastes, and nylon production.
Average time of N2O in troposphere is 120 years.
GLOBAL WARMING: REALITY OR FICTION [ARGUEMENT]
EFFECTS OF GLOBAL WARMING Climate change on human society Effects on plants and animals Effects on human being and health Effects on sea level Heat waves
EFFECTS OF GLOBAL WARMING 6. Ozone becomes harmful 7. Economic consequences 8. Disappearance of coral reefs 9. More killer storms 10.Effect on agriculture
Kyoto protocol was negotiated by many countries in December 1997 and came into force with Russia's ratification on February 16, 2005.
The protocol was developed under the UNFCCC – the United Nations Framework Convention on Climate Change .
The participant countries should cut down the emission of greenhouse gases like : carbon dioxide, methane, nitrous oxide, hydro fluorocarbons, per fluorocarbons, sulphur hexafluoride.
Kyoto – success or failure ?
FACTS ON GLOBAL WARMING
What will happen if global warming is allowed to continue ?
If worlds warms by : 10c : climate will become intolerable
20c : Ocean life in danger
30c : heat waves fatalities
40c : great cities wash away
50c : civilization collapses
60C : Mass extinction occurs
Which country currently emits the most greenhouse gases? 2.china 1.India 3.The United Kingdom 4.The United States
Which of the following light bulbs types uses the least energy and therefore results in fewer greenhouse gas emission? 1.Incandescent 2.Compact fluoresent 3.Halogen
How many human deaths per year does the WHO attribute to climate change? a) 150000 b) 1500 c) 1500000 d) 10500
How long does it take for CO2 in the atmosphere to disperse? 1.One year 2.Ten years 3.Fifty years 4.Hundred years
Which Artic animal do scientist consider most vulnerable to extinction due to global warming ? 1.Toucans 2.Trophical frogs 3.Polar bears 4.Narwals
Global warming is accelerated by the reduction of global snow and ace-covers . 1. True 2. False
A rise global temperature is expected to increase instance of malaria ? 1. True 2. False
Which of the following industries could be negatively affected by global warming? Insurance Commercial fishing Wine making All of the above
The greenhouse effect is caused primarily by : 1. Water vapours 2. Carbon dioxide 3. Ozone – destroying aerosol spray
How much CO2 is in earth’s atmosphere today? 1. 10% or greater 2. 2% to 10% 3. Less than 1/10th of 1%
How many countries participated in UN climate summit 2009 ? 1. 191 2. 192 3. 193 4. 194
The 2009 UN climate summit is organized at… 1. Dubai 2. Copenhagen 3. New York 4. London
Where are the some early signs of global phenomenon being observed ? 1. Indonesia 2. The artic 3. Equatorial Africa
Of the following people which are currently being affected the most by increased temperature ? 1. Latin Americans 2. Australian 3. Aborigines 4. The Eskimos
The greenhouse generated by the decomposition of waste is : 1. Carbon dioxide 2. Methane 3. CFC ‘s
Which of these forms of transportation is most energy efficient ? 1. Car 2. Bus 3. Train 4. plane
As global warming continues the intensity of what type of storm that hits coastlines is predicted to increase ? 1. Tornado 2. Hurricane 3. Tsunami 4. Earthquake
What species is the most at risk in acidic water ? 1. Coral 2. Plankton 3. Fish 4. Whales
During what time of the day does air travel have least damaging on the environment ? 1. Daytime 2. Night time 3. They are equally damaging
The main causes of global warming is : 1. Pollution from factories and industries 2. Orbital eccentricities of earth and variation in the sun’s output 3. The greenhouse effect