Climate change
Upcoming SlideShare
Loading in...5
×
 

Climate change

on

  • 216 views

 

Statistics

Views

Total Views
216
Views on SlideShare
216
Embed Views
0

Actions

Likes
0
Downloads
10
Comments
0

0 Embeds 0

No embeds

Accessibility

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Climate change Climate change Presentation Transcript

  • BY: NISHITA BANERJEE VI C
  • WHAT IS CLIMATE? • Climate is the general weather conditions of a place. • It is the pattern of variation in temperature, humidity, atmospheric pressure, wind, precipitation etc.
  • • Climate of the world is changing at a rapid speed. • Changes in climate can be: changes in average temperature changes in rainfall patterns changes in humidity level of a place.
  • CHANGING CLIMATES HAVE CHANGED LANDSCAPES ARAVALLI HILL FORESTS, INDIA
  • CHANGES IN THE FOLLOWING CAUSE CLIMATE CHANGE: CHANGE • Sun’s output • Earth’s orbit • Drifting continents • Volcanic eruptions • Greenhouse gases
  • SOLAR OUTPUT CAUSES ONLY MINOR CHANGES IN EARTH’S TEMPERATURES.
  • • In the distant past, these made a big difference in climate over millions of years by : changing ice caps at the poles altering ocean currents, which transport heat and cold .
  • CONTINENTAL DRIFT
  • Huge volcanic eruptions can cool Earth by injecting ash and tiny particles into the stratosphere
  • COOLING EFFECT AFTER VOLCANIC ERUPTION
  • BUT THE MOST SIGNIFICANT FACTOR FOR CLIMATE CHANGE ARE
  • GREENHOUSE GASES ARE:
  • FACTORY SMOKE FOREST FIRES VEHICLE EXHAUST OIL REFINERIES
  • GREENHOUSE GASES CAUSE
  • GREENHOUSE EFFECT • Greenhouse gases like CO2 and H2O form a blanket above the earth surface. • They trap the solar heat. • This leads to warming of the atmosphere.
  • This leads to : • More drought • more flooding • less ice and snow • extreme weather • rising sea level
  • FLOODS DROUGHT EXTREME WEATHER AND NATURAL CALAMITIES DUE TO GLOBAL WARMING POLAR MELTDOWN SEVERE SNOWFALL
  • GLOBAL WARMING CAUSES MELTING GLACIERS AND RISING SEA LEVELS
  • CYCLE TO REDUCE YOUR CARBON FOOTPRINT
  • BUT MAN’S GREED HAS ROBBED THE MOTHER EARTH OF ITS BEAUTY AND BOUNTY. WE HAVE TO STOP THIS MAYHEM BEFORE ITS TOO LATE.
  • - MAHATMA GANDHI.