EFFECTS ON POWERPOINT

1. 

3. 
A long-term shift in the weather
conditions identified by changes in
temperature, precipitation, winds, and
other indicators.
Can involve both changes in average
conditions and variability
Can be determine in two types. The
Human Causes and the Natural Causes
CLIMATE CHANGE

4. - Climate change can also be caused by human
activities such as burning of fossil fuels and
conversion of land for forestry and agriculture.
- In the beginning of the Industrial Revolution, the
human influences on the climate system increases,
and other environmental impacts.
- The overall effect of human activities since the
Industrial Revolution has been a warming effect, by
emissions of carbon dioxide and enhanced by
emission of other greenhouse gases to cause Global
Warming.
HUMAN CAUSES

5. 
 Greenhouse gases build-up enhance the natural
greenhouse effect.
-It’s a human-induced enhancement of green
house gases. Ongoing emissions of greenhouse gases
has a potential to warm the planet to the highest
level.
 Such climate change could have far-reaching
and/or unpredictable environmental, social, and
economic consequences.
HUMAN CAUSES

6. - The Earths climate can be affected by natural
factors that are external to the climate
system.
- Such us;
- a. VOLCANIC ACTIVITY
- b. OCEAN CURRENT
- c. EARTH ORBITAL CHANGES
- d. SOLAR VARIATIONS
- e. CURRENT GLOBAL WARMING
NATURAL CAUSES

7. 
It throws out large volumes of sulphur
dioxide(SO2), water, dust, and ash to the
atmosphere.
Large volumes of gases and ash can influence
climate patterns causing atmospheric cooling.
AEROSOLS produced by volcanoes reflect the
solar energy back into space and cause a
cooling effect to the world.
a. VOLCANIC ERUPTIONS

8. 
Oceans, major component of the climate
system. Ocean currents move vast amounts
of heat across the planet.
Interactions between the Ocean and the
Atmosphere produce El Niño(occur 2 to 6
years).
Deep ocean circulation; movement of cold
water from poles towards the equator and
movement of warm water from the equator
back towards the poles.
b. OCEAN CURRENT

9. 
Earth makes one full orbit around the sun
each year(tilted at an angle of 𝟐𝟑. 𝟓 𝐨
to
the perpendicular plane of its orbital
path.)
Changes in tilt can lead to small but
climatically changes the strength of
seasons.
More tilt-warmer summers colder winters.
Less tilt-cooler summers milder winters
c. EARTH ORBITAL
CHANGES

10. 
Sun is the source of energy for the
Earths climate system. Although the
Sun’s energy output appears constant
from an everyday point of view.
Small changes over an extended
period of time can lead to climate
changes.
Changes in the Sun’s energy output
would cause the climate change.
d. SOLAR VARIATIONS

11. 
Global warming is caused by more active sun.
There’s a cooling in the upper atmosphere, a
warming at the surface and in the lower parts
of the atmosphere. - due to Greenhouse
gasses capturing heat in the lower
atmosphere.
Climate models that include solar irradiance
changes cannot reproduce last century’s
observed temperature trend without including
a rise in GREENHOUSE GASES.
e. CURRENT GLOBAL
WARMING

12. 

13. 
THE END THANK YOU