WELCOME

A

SESSION

ON

GLOBAL

WARMING

CONTENTS

Definition

Causes

Effects

Prevention

Thanks

DEFINITION

Global warming

is the observed

and projected

increases in

the average

temperature of

Earth's

atmosphere

and oceans.

CAUSESCarbon dioxide(CO2)

emissions.

Catastrophic

changes in the

environment take

place when the

concentration of

CO2 reaches the

level of about 450

ppm.

EFFECTSIncrease of temperature

on the earth by about

3°c to 5°c by the year

2100.

Rise of sea levels by 25

meters (82 feet) by the

year 2100.

Melting of Glaciers and

Polar ice.

Increase of weather

events and natural

disasters like Droughts,

Floods, Tornadoes, etc.

PREVENTIONUse

to reduce

CO2 .

Every one should

Make

to save water.

Use to

replace electricity and

fuel.

&

protect our

THANKS

Thank

You.

Bishweashwar Shukla.

Vanasthali Public School,

Class-VI(B), Roll No-7,

Nilgiri House,

Mayur Vihar-III, Delhi-96.