akshay science project
TRANSCRIPT
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ScienceProject work
Class-10thName-akshay aggarwal
Roll no.-01Global Warming
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What is GlobalWarming???
Global warming is the increase inthe average temperature of the
Earth's near-surface air andoceans since the mid-20thcentury and its projected
continuation .
http://en.wikipedia.org/wiki/Instrumental_temperature_recordhttp://en.wikipedia.org/wiki/Instrumental_temperature_record -
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What are the causes ofGlobal Warming???
An increase in global temperaturewill cause sea levels to rise and
will change the amount andpattern of precipitation,
probably including expansion of
subtropical deserts. Thecontinuing retreat
of glaciers, permafrost and sea
http://en.wikipedia.org/wiki/Sea_level_risehttp://en.wikipedia.org/wiki/Precipitation_(meteorology)http://en.wikipedia.org/wiki/Retreat_of_glaciers_since_1850http://en.wikipedia.org/wiki/Permafrosthttp://en.wikipedia.org/wiki/Sea_icehttp://en.wikipedia.org/wiki/Sea_icehttp://en.wikipedia.org/wiki/Permafrosthttp://en.wikipedia.org/wiki/Retreat_of_glaciers_since_1850http://en.wikipedia.org/wiki/Precipitation_(meteorology)http://en.wikipedia.org/wiki/Sea_level_risehttp://en.wikipedia.org/wiki/Sea_ice -
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iceis
expected, with warming
being strongest in the Arctic.Other likely effects include
increases in the intensity
of extremeweather events, speciesextinctions, and changes
in agricultural yields. Globalwarming could affect seasons,
sea level and disrupt ecosystems.
http://en.wikipedia.org/wiki/Sea_icehttp://en.wikipedia.org/wiki/Arctic_shrinkagehttp://en.wikipedia.org/wiki/Extreme_weatherhttp://en.wikipedia.org/wiki/Extreme_weatherhttp://en.wikipedia.org/wiki/Extinction_risk_from_climate_changehttp://en.wikipedia.org/wiki/Extinction_risk_from_climate_changehttp://en.wikipedia.org/wiki/Agricultural_yieldhttp://en.wikipedia.org/wiki/Agricultural_yieldhttp://en.wikipedia.org/wiki/Extinction_risk_from_climate_changehttp://en.wikipedia.org/wiki/Extinction_risk_from_climate_changehttp://en.wikipedia.org/wiki/Extreme_weatherhttp://en.wikipedia.org/wiki/Extreme_weatherhttp://en.wikipedia.org/wiki/Arctic_shrinkagehttp://en.wikipedia.org/wiki/Sea_ice -
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What are the effectsof Global Warming???
The effects of globalwarming and climate change are
of concern both forthe environment and human life.
Evidence of observed climatechange includes the instrumentaltemperature record, rising sea
levels, and
http://en.wikipedia.org/wiki/Global_warminghttp://en.wikipedia.org/wiki/Global_warminghttp://en.wikipedia.org/wiki/Climate_changehttp://en.wikipedia.org/wiki/Natural_environmenthttp://en.wikipedia.org/wiki/Sea_level_risehttp://en.wikipedia.org/wiki/Sea_level_risehttp://en.wikipedia.org/wiki/Sea_level_risehttp://en.wikipedia.org/wiki/Sea_level_risehttp://en.wikipedia.org/wiki/Natural_environmenthttp://en.wikipedia.org/wiki/Climate_changehttp://en.wikipedia.org/wiki/Global_warminghttp://en.wikipedia.org/wiki/Global_warming -
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decreased snow cover inthe Northern
Hemisphere. According tothe IPCC Fourth Assessment
Report, "[most] of the observedincrease in global averagetemperatures since the mid-20th
century is very likelydue to theobserved increase in[human greenhouse gas]
http://en.wikipedia.org/wiki/Northern_Hemispherehttp://en.wikipedia.org/wiki/Northern_Hemispherehttp://en.wikipedia.org/wiki/IPCC_Fourth_Assessment_Reporthttp://en.wikipedia.org/wiki/IPCC_Fourth_Assessment_Reporthttp://en.wikipedia.org/wiki/Greenhouse_gashttp://en.wikipedia.org/wiki/Greenhouse_gashttp://en.wikipedia.org/wiki/IPCC_Fourth_Assessment_Reporthttp://en.wikipedia.org/wiki/IPCC_Fourth_Assessment_Reporthttp://en.wikipedia.org/wiki/Northern_Hemispherehttp://en.wikipedia.org/wiki/Northern_Hemisphere -
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concentrations". It is predictedthat future climate changes will
include further global warming(i.e., an upwardtrend in globalmean temperature), sea level
rise, and a probable increase inthe frequency of some extremeweather events. Ecosystems are
seen as being particularlyvulnerable to climate change.Human systems are seen as
http://en.wikipedia.org/wiki/Trend_estimationhttp://en.wikipedia.org/wiki/Trend_estimationhttp://en.wikipedia.org/wiki/Extreme_weatherhttp://en.wikipedia.org/wiki/Extreme_weatherhttp://en.wikipedia.org/wiki/Ecosystemhttp://en.wikipedia.org/wiki/Ecosystemhttp://en.wikipedia.org/wiki/Extreme_weatherhttp://en.wikipedia.org/wiki/Extreme_weatherhttp://en.wikipedia.org/wiki/Ecosystemhttp://en.wikipedia.org/wiki/Ecosystemhttp://en.wikipedia.org/wiki/Extreme_weatherhttp://en.wikipedia.org/wiki/Extreme_weatherhttp://en.wikipedia.org/wiki/Trend_estimation -
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being variable in their capacity to
adapt to future climate change.To reduce the risk of largechanges in future climate, many
countries have implementedpolicies designed to reduce theiremissions of greenhouse gases.
http://en.wikipedia.org/wiki/UNFCCChttp://en.wikipedia.org/wiki/UNFCCChttp://en.wikipedia.org/wiki/UNFCCChttp://en.wikipedia.org/wiki/UNFCCC -
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How we can prevent
it???Step1Drive less. Take bikes, walk or
carpool whenever possible.Step2
Consider investing in a hybrid orelectric vehicle to help preventagainst further global warming.
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Replace all the lightbulbs in andaround your home with energy-efficient fluorescents that use
fewer watts for the sameamount of light.
Step4Clean or replace your filters
monthly.Step5Choose energy-efficient appliances
when it's time to buy new ones.
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Step6
Decrease your air travel.Step7Wash clothes in cold water and
line-dry whenever possible.Step8Use a low-flow showerhead, which
will lessen the hot water usedbut not drop your water pressure
in the shower.
http://www.ehow.com/electronics/http://www.ehow.com/electronics/http://www.ehow.com/electronics/http://www.ehow.com/electronics/http://www.ehow.com/electronics/http://www.ehow.com/electronics/ -
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Step9
Cut down on your garbagebuyfewer packaged materials toprevent further global warming.
Step10Unplug electronics when they arenot in use, because they still take
up energy. At the very least, turnitems off when theyre not beingused.
http://www.ehow.com/electronics/http://www.ehow.com/electronics/ -
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Step11
Run the dishwasher and clotheswasher only when you have a fullload, and if available, use the
energy-saving setting.
Step12Insulate your home better, anddont forget to repair or replace
worn caulking or weather-stripping. Insulateyour water heater .
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Step13
Buy recycled paper products andrecycle as much of your waste aspossible.
Step14Bring your own reusable canvas
grocery bags when grocery
shopping.Step15
Plant a tree.
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Step16Have an energy audit done on your
home so you can find the troubleareas and fix them.
Step17Use nontoxic cleaning products.
Step18
Shop locally for food. A farmersmarket is an excellent place tovisit. And choose fresh food over
frozen foods. Fresh takes less
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energy to produce.
Step19Keep your car tuned up, and check
tire pressure often to save gas.Step20Eat less meat and
more organic foods in your dietto do your part in preventingglobal warming
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TheEnd!!!!!!