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GreenQ1 – 2016 / SCI110: General Science / Prof. Dr. Mudher Mustafa Feb 23

2016

Computing

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Introduction

Simplicity

Innovation

Transparency

TECHNOLOGYPUZZLES SKITSMUSIC TRAVELPHOTOGRAPHY

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CO2Carbon

EmissionCarbon

FootprintsGreen

Computing

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Every time we burn fossil fuels such as gas, coal or oil, carbon dioxide is released into the atmosphere. In a natural carbon cycle, carbon dioxide is re-absorbed by plants and trees. http://www.thecarbonaccount.com/carbonexplained/

Carbon Emission (CO2)

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A visual tour of the world's CO2 emissionsSource: https://www.youtube.com/watch?v=fJ0o2E4d8Ts

2:33 mins

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Carbon Footprints

the amount of carbon dioxide and other carbon compounds emitted due to the

consumption of fossil fuels by a particular person, group, etc.

definition from google.com

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Computing and CO2

How are computers related to Carbon Emission?

Every time you power up your computer, you’re drawing electricity from the nearest power plant which is probably powered by coal,

oil, or natural gas.

And burning fossil fuels produces carbon dioxide.http://www.carbonrally.com/challenges/10-save-energy

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Green Computing

“the study and practice of designing, manufacturing, using, and disposing of

computers, servers, and associated subsystems efficiently and effectively with

minimal or no impact on the environment.”definition from google.com

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Need for Green ComputingEnergy Leaving computers on when not in use

Printing Unnecessary printing of email, agendas, partial drafts, etc.

Pollution Manufacturing techniques, packaging, and disposal

Toxicity Use of chemicals like mercury, lead, and cadmium

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Laptop uses between 50 and 100 W/hour

Complete Desktop uses an average of 200W/hour

Energy Consumption

Based on 8 hours usage a day

Annual consumption: 600 kWh

emissions of about 175 kg per year

Annual consumption: between 150 and 300 kWh

emissions between 44 and 88 kg per yearCO2 CO2

On stand-by, the power consumption of both a desktop and a laptop computer falls to about a third.

Every single computer requires about 1.8 tonnes of chemicals, fossil fuels and water for its manufacture.

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Benefits of Green Computing

Reduce energy usage

Conserving resources

Reduces the risk

Saving the energy

Saving the planet

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In 1992, the U.S. Environmental Protection Agency launched Energy Star, a voluntary labeling program which is designed to promote and recognize energy-efficiency in monitors, climate control equipment, and other technologies.

The term "green computing" may be created immediately after the Energy Star program began.

The revised Energy Star Specifications of 2007 place stringent requirements to attain energy star ratings.

In 2012, American household and businesses saved $24 Billion on utility bills

Prevented greenhouse gas emission equivalent to that of 41 million vehicles.

History of Green Computing

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Energy Conservation• Buy "Energy Star" labeled monitors, desktops, laptops,

and printers• Turn off computers and peripherals when not in use• Put monitor in sleep mode or turn it off instead of

using a screensaver• Activate the power management feature on your

computer system• Reuse, Refurbish, or E-cycle used equipment

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Green Manufacturing• Bamboo is becoming increasingly popular for making

casings for computers and peripherals• Use of recyclable plastics instead of non-recyclable

plastics• Use of eco-friendly and non-toxic flame retardant

compounds• Inventory Management: Process of reducing the

quality of both, hazardous material and raw material• Volume Reduction: Removing of hazardous portion of

waste from non hazardous portion

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References• http://www.slideshare.net/CrGaurav/green-computing-17446288

• http://wei-wu.blogspot.com/

• http://www.carbonrally.com/challenges/10-save-energy

• http://www.brighthub.com/environment/green-computing/articles/71176.aspx

• http://www.slideshare.net/abhinavjollyjoshi/green-computing-32601148

• http://greengurlz93.blogspot.com/2011/10/22-history-of-green-computing.html

• http://www.energuide.be/en/questions-answers/how-much-power-does-a-computer-use-and-how-much-co2-does-that-represent/54/

• http://www.ecofriend.com/computers-emit-as-much-carbon-dioxide-as-aviation.html

• https://channel9.msdn.com/Blogs/coolstuff/5-Ways-to-Practice-quotGreen-Computingquot

• http://greencomputing.berkeley.edu/you-do.html

• http://www.slideshare.net/neenasahni/green-computing-ppt

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QUESTIONS / COMMENTS?

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THANK YOU FOR YOUR TIME