Poaching hunting ANTONIO SAORIN, MIGUEL CALVO Y DANIEL ASENSIO

POACHING HUNTING

DEFINITION:

Poaching is a global problem that has affected animals and has led to the put in danger of many species. Living things are captured in their native habitants and are sold as pets or for purpose of research or are killed so that their parents are sold for medicines, food, clothing or accessories.

CAUSES:

The causes of many species have become extinct or are dangered has been the exploration of animals for food and other products. For example, the dead of whales in large size for oil and meat has led them to the brink of extinction; African rhinos, killed for their horns, are also threatened. Great giant Elk became extinct in the 19^th century as a result of excessive hunting, and the Carolina parakeet disappeared as a species due to hunting and the destruction of their habitat.

CONSEQUENCES:

Rupture of the ecological balance, because each species not only interacts with the abiotic factors but it is constantly interacting also with other species for food, shelter or other benefits while competing with others (and can even be eaten).                         Loss of biodiversity.                                                                                A high percentage of single adult female families had an atypically small family size, with an average of only 2.2 adult females.

DEFORESTATION

Deforestation, clearance or clearing is the removal of a forest or stand of trees where the land is thereafter coverted to a non-forest use.

Causes

The overwhelming direct cause of deforestation is agriculture that held a lot of sail for crops may include:

         1. Corruption of government institutions.

         2. The inequitable distribution of wealth and power.

         3. Population growth and overpopulation, and urbanization.

         4. Globalization is often viewed as another root cause of deforestation, though there are causes in                      which the impacts of  globalization have promoted localized forest recovery.

Consequences

  

         1. The direct consequences of deforestation are many and varied, affecting all kinds of species and                    habitat which produces an alarming ecological imbalance.

         2. The disappearance of carbon dioxide sinks, reducing the abilityof th enviroment to absorbe this                     CO2 to make oxygen and thus carry out the greenhouse effect.

         3. In addition, a change in the soil which alter the climate of the place to having less moisture retention,              thereby causing droughts.

SAÚL MAYORDOMO, PEPE PÉREZ-HITA, ADRIÁN PÉREZ

La Ciencia descubre a Dios detras de cada puerta que abre - La fe en que la ciencia se basa

SAÚL MAYORDOMO GONZÁLEZ

Oil pollution

By: María Cascales, Gema Hernández and Victoria Saura

Ozone hole by Silvia Román and Paula Sánchez

Hole in the ozone layer, located in Antartica

What is?

It is the depletion of the ozone layer in the stratosphere. An annual phenomenon observed during spring in the polar regions. A surprise to the scientific community, because they observed that the decline in the ozone layer was much larger than anyone had anticipated.

Causes

If the ultraviolet radiation reaches the surface of the earth, there would be no life as we know it, since organic molecules are destroyed by ultraviolet radiation.  A main cause of this impact has been the industrial use of compounds such as CFC´S.

They are gases employed in many applications, particularly in the refrigeration industry (refrigerators, freezers, air conditioners, aerosols and packaging manufacturing).

These gases in the stratosphere trigger releasing CI atoms after decomposition by sun light; each CI atom destroys thousands of ozone molecules and turning them into dioxygen. This means that the chlorine liberated in the process of dissociation, causes the damage to ozone.

How does the hole in the ozone layer affect life?

o   It allows more ultraviolet rays pass, causing skin of cancer, blindness and the death of plants in areas near to the poles.

o   It affects wildlife in Antartica because UV rays kill microorganism which maintain the trophic mains in the ecosystems.

o   And the risk, can be that they could be extended to residential areas where people life.

Silvia Román and Paula Sánchez 1ºB Bachillerato

Gema Hernández

Here we have a video about all types of pollution and why they are bad. There we can se why we should take care of our planet and what are we really doing with it. We should stop wasting goods and star to think how to look after the Earth.

By: Gema Hernández Martínez

Saving the environment

Here we can see how to save the enviroment (in a funny way)

By: Irene Pérez