Download - Effects of global warming
Effects of Global Warming
- Nagaraju Ponna
Outline• INTRODUCTION• CAUSES• EFFECTS• PREVENTION
What is Global Warming ?
Rise in the average temperature of Earth's atmosphere and oceans
-The average temperature of Earth according to NASA figures is 15°C. (59°Fahrenheit)
-The hottest temperature ever recorded on our planet was 70.7°C (159.26°Fahrenheit) in the Lut Desert of Iran in 2005.
-The average global temperature on Earth has increased by about 0.8°Celsius (1.4°Fahrenheit) since 1880
-Between 1870 and 2004, global average sea levels
rose 17 cm (6.7 in)
Causes of Global Warming
• Greenhouse effect• Pollution• Deforestation
The Greenhouse Effect
Greenhouse Effect
• Greenhouse gases such as carbon dioxide, water vapor, methane, ozone and nitrous oxide hold heat in the atmosphere creating a greenhouse effect.
Green House Gas
• Water vapor (H2O)• Carbon dioxide (CO2) • Methane (CH4) • Chlorofluorocarbons (CFC’s)
Pollution• Automobile
• Industrial activities
Automobile
• Burning Fuels ---> CO+Co2+CH4+Other gases
• Fuel includes coal, Oil, Petrol, Diesel, Kerosence, ect..
Industries
Deforestation
Carbon dioxide vs. Global temperature graph
Effects of global warming
Melting polar ice caps will raise ocean levels;
Heat waves and droughts will be more frequent.
Forest fire increased due to hot winds
Up to 300,000 people a year dying – partly from the spread of tropical diseases.
The Spread of Disease
More than a million species worldwide could be extinct by 2050.
Increase in frequent volcanic eruptions due to rise in
temperatures
WHAT CAN WE DO?
Energy Conservation
Use Alternate sources of energy • Solar Wind Hydroelectric
Geothermal
REUSE
•Paper
•Covers and boxes
•Plastic bags
REDUCE USE
Plastic bags and cups do not decompose so harmful to environment
Paper bags and cups are eco friendly and easily decomposable
Reduce the usage of cars for short distances
Walk /use cycles for short distances
RECYCLE What Can Be Recycled?
Paper Items Paper Cardboard Envelopes Phone Books Magazine
Bottles and Cans
Cans Glass Bottles Aluminum Foil
11%
9%
11%
4%
39%
3%5%
18%
Fridge TV Fan Computer AC Heater/Geyser Appliances Light
ElectricityUtilization
Can we do some thing to reduce electricity utilization?
Can we do some thing to reduce electricity utilization?
Turn off the lights when you leave. Turn off the lights when you leave.
Conserve electricity!
DO NOT leave appliances
on standby
Conserve electricity!
DO NOT leave appliances
on standby
Turn to compact florescent light which saves more than 80% of energy
• Plant a tree
AFFORESTATION
Save Environment -- Save Life
Thank you