CLIMATE CHANGE

Context

What is climate change??? Weather different from climate….. Green house gases :o Causing by human activities.. CO2 effecting us Impacts How can we save our self's

Any change in climate overtime whether due to natural variability or as a result of human activity.

Climate change is caused by factors such as biotic processes, variations in solar radiation received by Earth, plate tectonics, and volcanic eruptions. 

Weather different from climate……. Weather can change from hour-to-hour, day-to-day, and

season-to-season. It may rain for an hour and then become sunny and clear. Weather is what we hear about on the television news every night. It includes wind, temperature, humidity, atmospheric pressure, cloudiness, sunshine and precipitation.

Climate is the average weather for a particular region over a long time period. Climate describes the total of all weather occurring over a long period of years in a given place. This includes average weather conditions, regular weather seasons (winter, spring, summer, and fall), and special weather events (like tornadoes and floods).

Green House Gases.. :oGreen house gases absorb and hold heat in the atmosphere: Carbon dioxide Methane Nitrous oxide Etc..,

Why is climate changing?Human Activities: Burning of fossil fuels , such as coal , oil or gas The increasing demand on electricity. Clearing land , including loggings. The breakdown of food and plants wastes and sewerage Some aspects of farming , such as raising cattle and sheepUsing fertilizers and growing some crops

CO2 Use after Industrial Revolution-on

Impacts: of burning fossil fuels..

On Water resources: The melting of glaciers

can cause floods . Rivers will dry up,

causing drought . More intense rainfall on

a rainy day and dry days in a year.

Impacts…. On sea level : There will be a rise in

sea level. People living on islands

will lose their homes . Whole ecosystem will

be wiped out.Ocean acidification: Decrease in pH value Some animals will

extinct.

Acid Rain: when people burn fossil, sulphur is oxidized and turns

into sulphur dioxide gas (SO2) And cars exhaust gives off NO2 , making our rain

acidic.

Impacts…….On Health : Poor health and death Polluted atmosphere- increased

respiratory illness CC causes over800,000 deaths .{WHO,

2012} 150,000 deaths nearly per yr bcz of air

pollution.

Impacts……..Global Warming: Increase in planet’s

average temperature due to green house gases.

Extreme weather pattern shift in all regions of the world.

Impact…..Risk of human

extinction: Natural food supply shortage. Polluted rivers ,lakes and

oceans with toxic material. Shortage of water supply . Polluted Air – High risk of

airborne disease.

How can we save our self's…..

Green house effect solution…

Green house effect

solution

Volcanic eruptions that release massive

amount of SO2 in atmosphere

Tree removes CO2 through

photosynthesis

Add iron to the upper layer of

the oceans

Reduce , Reuse , Recycle all types of items as much

possible

Preventions….. Limiting our electricity use at

home Use less hot water Turn off the lights, TV , heater ,

etc…, when not needed Use fuel efficient cars. Take public transport.

Methane

Conclusion…You can help tackle climate change by: Reducing , reusing and recycling products that u

buy Walk or take public transport to limit car usage Insulate your home better so that you do not need

to use so much energy to heat it Tell your friends and family about climate change

and what they can do to help.Although each action may be small , if many people

make small changes it will add up to make a big difference.

THANK YOU…

Made by: Archit JainClass/sec: X-b

Rol no. : 17 [1017-b]S.St activity…