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Comenius Project 2009-2010
Lahr second year meeting
-Renewable energies and their importance.
Climate change
The climate change is the modification of the
climate in respect to the climate history in a
global or a regional scale.
Global warming is the increase of temperature
in the Earth, that does that the ice shrinks
doing that the sea level rises. The causes are
mainly gas pollution, and also the volcanoes
and the tectonic plates.
When the light of sun arrives at the Earth, this
reflects it, but later the light is returned by
the atmosphere for the gases.
Climate change impacts
The climate change produces many
problems around the world:
- Increase of the temperatures
- Shrink of the glaciers
- Rise of the sea level
Climate change solutions
To reduce the pollution, the most important
solutions are:
- Reduce emissions of contaminant gases
- Use renewable energies
Renewable energies
Renewable energies don’t
pollute and they are
neverending because they
are present in the nature.
The most used are:
• Solar energy
• Wind power
• Hidroelectricity
• Geothermal energy
Renewable energies in Europe
Europe is the leading world power in the development and the
implementation of renewable energies, but only Deutschland is in
track to achieve the focus set in the Kyoto protocol.
Renewable energies in Tarragona
Tarragona has got a lot of wind farms and they produce the 10,7%
supplied energy in Spain. It has got wind farms in all over Tarragona,
for example Tortosa.
Solar energy
This energy is obtained by solar panels, which generates
energy with the light of the sun.
Wind power
Through wind turbines, the wind is converted into electricity.
Normally, there are grouped, forming wind farms.
The problem with this energy is that the turbines cause a
visual impact, and they kill animals like birds or bats.
Hidroelectricity
The power generated by the water currents is converted into electricity
through turbines. This system takes advantage of the potential and the
kinetic energy.
Geothermal energy
This power is extracted from heat stored in the Earth.
Geothermal plants have capacity to generate about 10 gigawatts.
Kyoto Protocol
The Kyoto Protocol is a protocol that
tries to fight the global warming.
- Participation in the Kyoto Protocol, in
June 2009. The green countries are the ones
that have signed and ratified the treaty, the
grey ones are not yet decided and the red
ones haven’t got intention to ratify.