Sea levels are rising due to global warming caused by human emissions of greenhouse gases. The two main causes of sea level rise are the thermal expansion of ocean water as it warms and the melting of land ice sheets and glaciers. Current estimates show sea levels rising 3.2 mm per year globally but faster in some areas, threatening coastal communities with problems like flooding and erosion. To mitigate further dangerous sea level rise, experts recommend reducing greenhouse gas emissions by 80% by 2050, though even that may only limit warming to 4-6 degrees Celsius by 2100.

2. SEA
LEVEL
RISE
By: Shahzad Channa
MBA (EEM) Program,
Institute of Business
Management
Course: Environmental Issues & Management
Instructor: Dr. Nuzhat Khan

3. Not enough space for
growing population
Do you Know!! The planet we live in has 3 parts water and 1
Part dry
Water remains constant, not a pint
goes out or comes in, in this closed
system but changes form.
• Then what causes variations in
sea levels?
• When these variations are detected?
• Why these variations occur, when
water is constant?
• Is it alarming?
• Are humans progressing or
regressing?
• What are the solutions?

4. Sea level is generally used to refer to
mean sea level (MSL), an average
Level for the surface of one or more
of Earth’s oceans from which heights
such as elevations may be measured.
Do you Know!! Elevations are determined with
reference to mean sea level
e.g. Muree is 2,291.2 m above the sea level
“The careful measurements of variations
in mean sea levels, can offer information
about “climatic change”.
and has been interpreted as evidence
supporting the view that current rise in sea
level is an indicator of global warming.
Sea is an enormously large
continuous body of water formed
over depressed parts of the earth
Surface. In fact, sea is a part of ocean
which is close to the continental land.

5. Do you know!! Current sea level rise Is 3.2 mm/year according
UNEP (United Nations Environmental Program)
The tropical western pacific 12 mm/year
Island of Kosrae, in the federated States of Micronesia 10mm/year
What can happen if sea level continues to rise?
It will lead to problems like,
• Drainage
• Coastal Erosion
• Annual wave flooding

6. What causes SLR (Sea level Rise) ?
• Thermal Expansion of Sea water.
• Ice melting
Do you Know!! Global warming causes change in the climate.
This global warming is the result of unsafe human practices for their own luxury.
The biggest threat to the
environment due to unsafe
human practices is the
emission of greenhouse gases.
Carbon dioxide is the component of green house gases.
carbon entraps heat that results in the rise of temperature
of the area.
Methane and Soot are the other two, that have
adverse effect on our environment.
Rising temperature is the
Results from the carbon
Emissions and effects of
Other greenhouse gases
& causes the above mentioned
Two reasons of SLR.
Methane is 20 times more powerful as a greenhouse gas
Than carbon di oxide.

7. What if it is not controlled today?
• Glaciers will collapse. • Thermal expansion of sea water will
be at accelerating rate.
 1990- 2000 Carbon dioxide rose at
0.9% per year
 2000-2008 Carbon dioxide rose at
3.5% per year
 China the biggest emitter at 21%.
 US second place at 19%
 Russia and India, 3rd & 4th.
 In the past 20 yrs, melting rose 150%
above the long term average in Green
land. In the past 11 years, the total
mass deficit was tripled.
 The amount of ice lost in Greenland in
the year 2008 is nearly Three times
what was lost in 2007.

8. Do you know!! An 80% reduction in greenhouse gas
Production by 2050 will still likely
Produce 4-6 Celsius warming by 2100
Are we progressing or Regressing?
Previously our main focus was human luxury and its consequences
on environment were oblivious to the mankind. Later the need to
protect the environment that is being damaged regularly due to human
activity won some attention after the inception of UNEP in the recent past.
Future
Our approach
Is revised. Our
Development
activity is cate-gorized.

9. STAY SAFE, LIVE GREEN.
THANK YOU