Transcript GLOBAL WARMING

GLOBAL WARMING
By Cristóbal Navarro Gómez
2ºBachiller de Investigación
Work’s point
1. Global warming.
2. Causes of global warming.
3. Greenhouse effect.
4. Difference between global
warming and climate change.
5. Consequences of global warming.
6. Personal opinion.
What is global warming?
Global warming refers to a continuing rise in the average
temperature of Earth's climate system,90% of the warming
has occurred in the oceans but is also used to refer to
increases in average temperature of the air and sea
at Earth's surface.
The present warming is generally attributed to an increase
in the greenhouse effect , brought about by increased levels
of gases like CO2 , due to the effects of human industry and
agriculture.
Causes of global warming?
-Carbon dioxide emissions from
fossil fuel burning power plants.
-Carbon dioxide emissions from
burning gasoline for
transportation.
-Deforestation, especially tropical
forests for wood, pulp, and
farmland.
-Increase in usage of chemical
fertilizers on croplands.
What is greenhouse effect?
The greenhouse effect is a process by which thermal radiation
from a planetary surface is absorbed by atmospheric gases,
and is re-radiated in all directions.
This produces an elevation of the average surface
temperature above what it would be in the absence of the
gases.
Earth’s natural greenhouse
effect makes life as we know
it possible. However, human
activities have intensified
the natural greenhouse
effect,
causing
global
warming
Difference between “global
warming” and “climate change”?
GLOBAL WARMING
CLIMATE CHANGE
Is the increase of the Earth’s
average surface temperature
due to a build-up of
greenhouse gases in the
atmosphere.
Is a broader term that refers
to long-term changes in
climate, including average
temperature and
precipitation.
Consequences of
global warming.
- Rise in sea levels worldwide.
- Widespread extinction of species.
- Massive crop failures.
- Melting of the Glaciers.
- More hurricanes.
6. Conclusion and
personal opinion
Global warming is one of the biggest problems facing the
world today.
There are several things we can do to solve the problem of
global warming. One solution is to stop producing energy
through oil and coal. Other solution is to use less energy and
to recycle more products. Generating electricity is one of the
main sources of carbon dioxide. If we use less electricity, we
will produce less C02, and the last option is to plant more
trees.