2. THE OCEAN COVERS ABOUT 70% OF EARTH’S SURFACE
It contains about 97% of all the water on Earth
The average depth is about 2.7 miles
3. THE OCEAN PLAYS AN IMPORTANT
ROLE IN EARTH’S ENVIRONMENT:
It soaks up heat and distributes it around the Earth
It helps to absorb Earth’s carbon dioxide
4. HOW DOES THE OCEAN SOAK UP CO2?
The ocean absorbs
CO2 from the
atmosphere
wherever air meets
water
Wind causes waves,
giving more
opportunity for the
water to absorb CO2
The water becomes acidic.
This fact destroys the
delicate balance needed for
animals to survive
5. HOW DOES THE OCEAN
SOAK UP ENERGY?
HOW CAN IT AFFECT
THE CLIMATE?
The ocean absorbs excess heat
from the atmosphere.
If the planet warms, the ocean gets
most of the extra energy.
If the ocean gets
too warm, then the plants
and animals that live in it
are in danger.
In Europe, the ocean affects the climate by
carrying heat to the north in the Atlantic Ocean.
Thanks to the Great Ocean
Conveyor Belt the heat carried
helps keep the Atlantic Ocean
warmer in the winter time,
which warms the nearby
countries as well.
7. YES, it is
raising at an
increasing rate
because of the
continued
ocean and
atmospheric
warming
8. Global sea level has increased in recent decades,
according to the Proceedings of the National Academy
of Sciences
In 2014, global sea level was 2.6 inches above the 1993
average
Sea level continues to rise at a rate of about one-
eighth of an inch per year
9. HOW DO WE KNOW SEA
LEVEL IS RISING?
NASA MEASURES SEA LEVEL AROUND THE GLOBE USING SATELLITES:
Jason-3 bounces radio waves off the ocean surface.
Then, it times how long it takes for these signals to return.
It does this for the entire Earth every 10 days, studying how global sea level is changing over time.
JASON-3 SATELLITE
11. EMISSIONS FROM HUMAN ACTIVITY,
ESPECIALLY THE GREENHOUSE GAS EMANATION,
HAS A RIPPLE EFFECT AND IT AFFECTS THE SEA LEVEL.
12. EMISSIONS PROVOKE THE
INCREASING OF THE
ATMOSPHERIC HEAT WHICH IS
AT THE BASE OF THE THERMAL
EXPANSION
AND THE INCREASED MELTING
OF THE LAND-BASED ICE
14. • 200 MILLIONS OF PEOPLE WILL HAVE BEEN
PERMANENTLY BELOW THE HIGH TIDE LINE
BY THE 2100, 480 MILLIONS OF
PEOPLE WILL HAVE LIVED IN
FLOOD RISK AREAS
15. BY THE 2050, THESE CITIES WILL HAVE
DISAPPEARED
BANGKOK
(THAILAND)
SHANGHAI
(CHINA)
MUMBAI
(INDIA)
17. VENICE AT RISK
SEA LEVEL RISE, EROSION AND CRUISE SHIPS ARE
WORSENING VENICE’S FLOOD PROBLEM
18. The floodwaters in the city reached an
unexpected high of 187 cm above sea level
Countless cultural treasures remained
partially submerged for days in the salty
polluted water
