2. Topic
• Information technology (IT) is the acquisition,
processing, storage and dissemination of vocal,
pictorial, textual and numerical information by
a microelectronics-based combination
of computing and telecommunications.
• Having both positive and negative effects on
environment.
• What can be done to maximize POSITIVE aspects
and minimize the NEGATIVES?
4. + aspects of IT
1) Reduction in consumption of paper:
i) Use of digital database
ii) Uses of e-books
iii) Less letters more calls, SMSs
and e-mails
iv) Less greeting cards more
online and text wishes
2) Reduction of use of writing and
printing inks
3)Reduction in transportation:
i)data transfer through e-mails,
FAX, telephones and cell phones
ii)shopping through e-marts
iii) banking through e-banking
and ATMs.
iv) use of TELEMEDICINE.
5. + aspects of IT
4) compact space, reduction in
cutting of trees
5) Monitering and controlling
changes in the Earth’s
environment through satellites
6) Spreading awareness
regarding environment through
INFORMATION TECHNOLOGY:
using television, internet,
radio channels and
messages.
7. 21st century
• Information age or computer age
• Information technology
• Telecommunications
• 77% of world population owns mobile phones
• 4-5 % of world population owns PCs
8. Computers
• Every single computer requires about 1.8
tonnes of chemicals, fossil fuels and water
for its manufacture.
• Emission of about 0.1 tonne of carbon
dioxide in a year.
• 2 per cent of world's total carbon dioxide
emissions
• Global warming
• Dumping of old computers in landfills
• Soil pollution
10. E- Waste from IT
>>Discarded electronic or electrical devices or their parts
Such as
Discarded Computers
Televisions
Monitors
Laptops
Cell Phones
VCRs
Stereos
Copiers
Fax machines
11. Dangerous elements in E-waste from IT
The cathode ray tubes (CRTs), which contain significant
amounts of lead.
Liquid Crystal Displays (LCDs) are illuminated by
mercury-filled panels.
Circuitry contain chromium, copper, and lead that
exceed regulatory limits.
The batteries contain such as lead, nickel, cadmium,
silver, lithium, and other dangerous metals.
16. Mobile radiation:
Effects on environment
Farm animals -
Dairy cows –
•Decreased milk production
•spontaneous abortions
• reproductive problems
•general declines in overall health.
•Sheep, dogs, cats, rabbits living near base
stations affected.
17. Mobile radiation:
Effects on environment
Birds –
• Interfere with navigation,
reproduction, thin shells.
• London - 75% fall sparrow
population.
• Fall in Pigeons, swans, white stork,
rock dove
•Biological indicators to detect
alterations in our ecosystem
18. Mobile radiation: Effects
on environment
Honey bees
Colony Collapse Disorder (CCD):
• Abrupt disappearance of bees.
• Cannot find their way back to hive due
disruption in intercellular communication.
CCD has hit –
US (up to 70 %), England (54% fall), Germany,
Spain, Italy, Switzerland, Greece, Scotland, Wales,
Kerala etc
19. MANAGEMENT & CONTROL
• INSTITUTIONS / INDUSTRIES FOR WASTE
DISPOSAL
• GOVT. INITIATIVE
• INDIVIDUAL COMMITMENT
20. INSTITUTIONS & INDUSTRIES
Role:
• The IT related industries (esp. the manufacturing
ones) should reduce the use of toxic substances in
products.
• Recycling plants and collection centers should be
set up .
Do not DESIGN TO Dump !
Instead, DESIGN TO LAST !!!
21. Government initiative
• The GOI has passed strict rules in 2010 for e-waste
management and disposal
• Has taken a strong stand in international forum.
• More initiatives are expected from GOI.
23. Old Computers?
Want to Dump !!!
Option 1: If your computers are in working condition, you can
donate them to a school or an organization working in the field of
education.
Option 2: If your computers are out of order, return them back to
the manufacturer.
Option 3: Send them to a recycling facility for proper disposal.
25. Want to buy a gadget ?
-- Be a ROHS
compliant customer.
ROHS :Restriction Of the use of certain Hazardous Substances in
electrical and electronic equipment
Lead (Pb)
Mercury (Hg)
Cadmium (Cd)
Hexavalent chromium (Cr6+)
Polybrominated biphenyls (PBB)
Polybrominated diphenyl ether (PBDE)
PBB and PBDE are flame retardants used
in several plastics.
26. Buying a new cell phone
Check its SAR level first….
27. Going to buy a new gadget
Do you really need one?
Think
twice, be
wise