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