The importance of forests

The Forest has the great biodiversity and guarantees the necessary ecological balance. Therefore, it is each time more recognized as a space basic importance for the maintenance of the natural values and for the improvement of the quality of life of the populations.  The forests cover about 30% of the terrestrial surface. It is in the forests and other vegetal covers where the photosynthesis on which the life depends: production of oxygen from the carbon dioxide. They are depositaries of 2/5 of all carbon stored in terrestrial ecosystems, being considered as “the lungs of the world” or “carbon sinks”. Beyond the indispensable photosynthetic function, the forests play excellent relevant roles, in an ecological, economic and social level. Among innumerable functions, them:

 - They are a good source of wood, fuels, foods and raw materials (for example: resin, cellulose, cork oak, fruits, berries);          

- They have protection functions of the ground against erosion, and of control of the cycle and the quality of the water;

 - They concentrate most of terrestrial biodiversity, particularly vegetal and animal species;

 - They have a high landscaping and recreative value.

Posted by: Rita Fragoeiro

Forest Degradation

  Forest degradation is the reduction of forest quality. This has devastating results: soil erosion and destabilization of hydrographic basins that can cause droughts and floods. Tropical forests degradation also results in biodiversity reduction (since forests play an important part in Carbon Dioxide removal), deforestation results too in the increase of the Greenhouse problem.

  In undeveloped countries, deforestation main cause is raw materials exploration, particularly the wood itself, because these countries have few alternatives to the use of natural resources to develop their economies.

  Large scale deforestation contributes for CO₂ emissions (about 1o to 30% per year). This is one of the main GHG (greenhouse gases) involved on the planet’s global warming. On the other hand, growing forests remove CO₂ from the atmosphere putting it on trees and soil. For example, vast forest areas from Siberia (that cover an area almost as big as USA) contain almost half of CO₂ relatively to the Amazon forest.

Posted by : João Malaquias

What will life be in fifty year’s time?

If we think ecologically life will be worst because of global warming and the lack of resources. I also think that if we don’t change now in the future we won’t be able to do things we like to do now because the Earth will be totally different. I also believe that technologically will be more advanced and this technological developments will damage nature and our quality of live through the noise and the pollution.

In conclusion I think that our environment will be compromising if we don’t change our acts our way of living now.

Posted by Rita Fragoeiro

The Giant Panda - another case of possible extinction

  The Giant Panda used to predominate in China. The Giant Panda belongs to the ''Bear Family''. It is known for its black patches around the eyes, over the ears, and legs. Although this animal is carnivore, it usually eats bamboo. This sweet bear can also eat other vegetables, fruits and other types of food, such as oranges, bananas, fish, eggs and even leaves! 

  A Giant adult Panda can reach 1,5m of height and weight 140kg. Female Giant Pandas only give birth once a year and most of the times there are only born two newborn cubs which are 10cm length. This is one of the reasons why the Giant Panda is now one endangered specie. When born, they are blind and their fur is all white. They are able to see a few months later, and the black patches appear just a month after the birth. With only one year, this ''teddy bears'' weight almost 40kg. They can live approximately 25 years.

  This specie is endangered mostly because of deforestation, but also because of farming.

  Recent studies have proved that there are only 600 to 1000 Giant Pandas left in the whole world. Chinese authorities have been doing almost everything to save this animals.

  Spending all their days eating, looking for food and doing nothing, these animals live in the Ocidental China mountains and Eastern Tibet.

(image - google.com ; http://www.saudeanimal.com.br/extinto15.htm , http://www.bicharada.net/animais/animais.php?aid=143&gid=&fotoid=385 , http://animais-em-vias-de-extincao.blogs.sapo.pt/924.html )

Posted by : Joana Fernandes

Recycling

  Recycling is the term used for the process of transformation of a product that is no longer useful. Its international symbol represents three arrows that move in a triangle, which corresponds to each part of the recycling process: collection, manufacture and resale.

  Recycling is a simple way to help the environment because we preserve natural resources from ending.

  As you know, there are five recycling contentors: glass (green can), plastic and metal (yellow can), paper (blue can), batteries (red) and the organic rubbish. There are plenty of recycling locations around the world, you just have to find the one that is near your home! 

  The purpose of recycling is to avoid landfill sites, soil contamination and harming the environment. 

  Every single person produces approximately 180kg of rubbish in one year. We can reduce that by just using both sides of a paper, using plastic bags for the cans, giving things we no longer use to poor people (such as clothes, toys, books) and buying recyclable products. 

  China recycles 50% of its own rubbish. In this country, there are many types of recycling. The USA recycles 3/4 of its own rubbish. Countries like Germany, Sweden, Norway and Denmark also have high percentages of recycling. However, that is not the case of Portugal. Portugal only recycles 15% of its own garbage. What is more is that the European Union had stipulated 25% as the minimum percentage of recycling for the european countries! Portugal is failing here!

  Just so you know, a simple paper can take 3 to 6 months to be absorbed. A small bubblegum can take 5 years. A drink can can take a lifetime: 80 to 100 years. Glass can stay one million years in nature without decomposing! And what about you? How long does it take for you to start recycling?

(image- google.com ; http://www.rtp.pt/web/abrincar/tema11.htm )

Posted by: Joana Fernandes

Bengal Tiger

  The Bengal Tiger was primarily found in India and Bangladesh. This specie is the most numerous of the tiger sub-species. Nowadays, there are still some of these in India, Nepal and Bhutan forests. However, it is extinct in Pakistan.

  With an orange and black striped short fur, this agile animal can reach the weight of 260kg. Its length is almost 3m , its tail measures between 60cm to 1m and its body has approximately 20 stripes. Their paws are white, as well as the bottom of their legs.

  This beauty does not like high temperatures and therefore, in the summer, it tries to be close to the water. It is a profissional hunter: it attacks deers, some types of monkeys, birds, baby elephants, water buffalos, antelopes and gaurs. It can live approximately 26 years in the wild. They grow up individually because the male tiger does not want to establish any connection with its newborn cubs. Male Bengal Tigers usually fight to defend their territories. However, that is not the case of the female Bengal Tiger. This one actually shares her territory with other females occasionally. The baby Bengal Tigers become independent when they reach 18 months old. Untill that, they are taught to hunt and to defend themselves. 

  This specie particularly breeds between November and April. The male reaches maturity at 4 years old and the female between 3 and 4 years old. The newborn cubs can weight about 2kg and until their 8th week, they are fed of milk.

   According to recent studies, there are approximately 2000 Bengal Tigers in the wild. So as you can see, they are not that many, are they?  They need our help, we must do something.

( http://writersforensicsblog.files.wordpress.com/2009/09/bengaltiger.jpg , http://blogtigredebengala.blogspot.com/ , http://en.wikipedia.org/wiki/Bengal_tiger )

Posted by : Joana Fernandes

Toxic Waste - The easy way out

Toxic Wastes created a fairly new problem in our world. Toxins or hazardous chemicals  are made to do tons of things nowadays, for example cosmetics, peticides, fertelizers, medical equipment, cleaning products, nuclear weapons, chemical warfare, nuclear stations, laboratory research... and many, many more.

 The use of these chemicals started somewhat during the insdustrial revolution, and they have been used since. Toxic wastes are a kind of pollution, but i think they are the one of the most dangerous kinds of pollution that can be made to the world. Radioactive isotopes are used for a variety of things, but they are generally very hazardous to human, animal, and vegetable life. Radioactive and toxic materials often cause cancers, mutations, and other life threatening conditions, and the importance of disposing properly of them is extreme. If not properly disposed off, these chemicals may pollute the lands, people might com in contact with them, or more importantly, they might make their way into the large deposits of undergroung drinking water. This is a very serious issue, because everyone has to drink water, and if the water people drink is contaminated, the effects of these toxins might affect many at once, without they even realizing it. Another way hazardous chamicals can travel is trough acid rains, those of wich travel in the clouds, and then rain down on unsuspecting cities, hazardous wastes can also be in a form of gas, wich makes it very dangerous as well, because people might just breathe them.

 Hazardous wastes can sometimes be disposed of by incineration, or storing in their appropriate places, however, this costs a lot of money. For some companies, sometimes it's just easier to dump these dangerous materials out in the nature, and even when they are handled carefully, sometimes accidents happen, wich results in the release of these chemicals. Below is a video about a hazardous waste cleanup performed in 1994.

Pedro Batim

Floods

A flood happens when water gets flows and submerges a large portion of land. It usually happens when a river or lake by some means, receives water past the amount it can hold, the said water then escapes the river or lake, and flood the lands wich are near them.

 The amount of water a river or lake contains usually varies over the years, depending on the intensity of the winter, but a flood is never declared unless the amount of water that escapes from the place in wich it is conatined is significantly large. Floods are very dangerous when they happen in villages or cities. People could eliminate the danger of floods by living far from water sources such as rivers, but civilization habitates near there sources since the beginning of times, for their usefulness, especially in countries were water is not very abundant, and humans still live in areas threatened by flooding today, wich means the values of having a watersource near the city outweighs the cost of having the risk of flood. Floods not only occur naturally however, if for example a dam breaks down, the large ammount of water that is released is sufficient to flood a village. Floods are very threatening, they cause many casualties especially if they occur during the night, when most of the people are sleeping, they cause damage to buildings, contaminates drinking water, and is a source of water-borne deseases and epidemics. Large floods are very dangerous, however small floods or even larger floods that pose no threat to human civilization can be beneficial, they recharge ground water, fertilize the soil, and are especially useful in arid soils. Floods are usually caused by large storms, cyclones, human intervention (such as dam breakage) and studies connect to effects of global warming to an increased risk of floods.

The risks of floods are very dangerous, they cause a lot of casualties and damage, it can take longer than we think to rebuild a city or village affected by a flood.

                                                      Flood

Pedro Batim

The Bluebuck

Mother Nature has her own ways of keeping our planet balance. If we take a closer look every aspect in the Nature like the amount of animals, what they eat, their habitats, we’ll see everything is practically perfect!

Messing with this equilibrium may cause a negative impact in many parts of the environment.

Take an example, the Bluebuck (Hippotragus leucophaeus). This is an extinct species of antelope and it lived in South Africa savannahs but it widespread during the Ice Age.

The Bluebuck became extinct around 1800. When the Europeans found this animal in the 17th century it was already rare but the eager of hunting this majestic animal caused its lost. There are four museums were you can see this specimen but none of them shows the delicate blue to grey color spoken in the earlier descriptions of the bluebuck.

They ate mainly grass and they prefer extensive grasslands, avoiding areas with short grass and woodland and they could go for long periods without drinking.

My point is that we should be more careful with the impact that we can cause on the planet and that the animal stability is very fragile so it should be protected, not destroyed!

sources: http://en.wikipedia.org/wiki/Bluebuck
http://www.andrewisles.com/AndrewIsles/images/product_images/BMImg_25472_25472_bluebuck.jpg
image

Ana Rita Costa

The Garbage Patch

The very thing that makes plastic so useful for consumers, their stability and durability, it’s exactly what makes them a threat and a problem to the marine ecosystems.

10% of plastic end up in the sea and most of them comes from land, from us.

Plastic doesn’t go away. Every piece of plastic we made it’s still here! When we throw it away it doesn’t disappears for good, it’s just out of our sight but the effects they have continue affecting our planet.

The Trash Vortex (also known as Garbage Patch) is an area bigger than Texas and it’s located in the Pacific Ocean. This huge concentration of garbage is swirling slowly around like a clock. It’s estimated that there is six kilos of plastic for one kilo of plankton. This is extremely dangerous for sea creatures that have a much larger probability of eating plastic instead of plankton. This is really dangerous for fishes and humans as well! Sea creatures can die, not only because they suffocate with pieces of plastic, but also because plastic contains many hazardous chemicals. When these chemicals enter in the fish food chain it also affects humans. Large fishes like tuna have an even bigger concentration of dangerous chemicals and that can cause cancers, reduced fertility problems, etc.

This situation is awfully embarrassing for us. How could we let it get to a point that it’s impossible to go back? It’s not possible to clean up the Garbage Patch it would take too many money and effort. The best we can do now it’s prevent it from getting even bigger if we can’t just start putting garbage where it belongs instead of in the oceans.

sources: http://www.greenpeace.org/ varied documents
http://www.youtube.com/watch?v=tnUjTHB1lvM&feature=fvst

Ana Rita Costa

When the earth shakes...

Earthquakes, (somestimes also known as tremors) are an effect that occurs when the earth's crust releases energy, that is transformed into seismic waves. Earthquakes are measured by a scale called "Magnitude" wich measures the earthquakes strenght in a scale using numbers.

Earthquakes that measure a magnitude of 2 or 3 for example, are the ones we rarely feel, and occur most frequently, however an Earthquake of magnitude 7 or 6, causes serious damage to a location and usually cover a large area, the size of an entire city sometimes. As most of you know, we can feel earthquakes when the ground starts shaking, the ammount of shaking however, is measured by the Marcalli scale.

The epicenter of an earthquake, is the place where the earthquake origins, and the closer one is to the epicenter, the larger is the strenght of the tremor. Earthquakes are often strong enough to set off volcanos, and cause landslides, with adds to their danger and destruction power. Naturally, earthquakes are caused by the colliding of the tectonic plates (the world has 8 major tectonic plates, and many smaller ones) wich when they do collide, starts shaking due to the force of the impact. An Aftershock or Foreshock, is an earthquake that occurs after or before a stronger earthquake, respectively , with the aftershock or foreshock having smaller magnitude than the original earthquake. When the epicenter of an earthquake is located in the ocean, it might release a tsunami.

However, there are already some skyscrappers and building with advanced counter-measures to avoid earthquakes, and they usually work very well. Below is a small video by the National Geographic channel on youtube, wich depicts what happens during a tremor.

Pedro Batim

Soil Pollution

Soil pollution is caused by garbage that people leave lying around the gardens, the streets, forests when you make a picnic… when people throw their garbage out the car’s windows… on beaches, when people return home but leave trash on the sand.

There are chemical products that farmers use to fight plant illnesses and that the soil absorbers, this way getting contaminated and affects water sheets existents in the sub ground. There are also extremely bad materials for soils that are radioactive nuclear wastes that can contaminate the soils and automatically those can never be used again.

Open sky garbage incineration (this means, burn trash) is also a serious problem that affects the soil but at the same time contributes for the amount of every kind of pollution.

Posted by: João Malaquias

Plastic Bags

Normally, when you go to the grocery store, you come back with the thing you bought inside plastic bags. Right?

The problem is that by the end of the year, millions of bags were used when they didn’t need to be used.

Why?

Because plastic bags are reusable. They can be washed and used over and over.

Some supermarkets force their clients to buy plastic bags.

A lot of people think that that is just to make more money, but it isn’t: it’s to save the environment!

Nowadays, plastic bags are “recyclable”, but not all are biodegradable, which means that they don’t “disappear” from the Nature.

Did you know that the ink used on plastic bags contains heavy toxic metal?

So, when plastic bags are burned, they release dangerous gases that pollute the atmosphere.

So, how do we solve the problem?

First, reuse plastic bags. If each and every one of us spent minus one plastic bag (than the regular amount) every month, we would be saving hundreds of thousands of bags.

Second, do we really need to take the grocery shopping in plastic bags provided by the supermarkets? Isn’t it easier to just simply take a bunch from home?

And how about when we do several shopping in several stores and each gives us their own bags for each thing? In these cases, we can check if what we bought fits in another bag and spare taking one more, never forgetting to be polite and appreciate the offer (even though it’s just to spread their brand), but knowing that preserving the environment is much more important!

Always remember: bring a strong and reusable bag from home when you go shopping is by far the best solution and the friendliest to the environment.

Posted by: João Malaquias

Renewable energies

        Renewable energies are inexhaustible sources  provided by nature, like the sun or the wind. These energies could be:

Solar energy: can be converted on electricity or cold, as for example photovoltaic or thermal solar panels for the house  or water heating.

Wind energy: can be converted on electricity through wind turbines.

Water energy: rivers water, tides water and waves water can be “transformed” on electric energy, as for example the barrages.

Geothermal energy: soil energy can also be converted on house or water heating.

         The incentives to the use of renewable energies and the great interest that this subject raised over the last years, it is mainly due to possible scarcity of fossil resources (as the oil) and the need to reduce the harmful emissions of gases to the atmosphere and the GGE (greenhouse gases effect). This interest is, in part, due to the objectives of the EU, Kyoto protocol and the worries about climatic alterations.

         The use of renewable energies ( as an example, the photovoltaic or thermal solar panels)  for the heat production or electric energy through the progress of solar energy, is an area in which Portugal has a great abundance of resources, comparing the availability of sun hours per year with others countries of the EU. 

Posted by: Rita Fragoeiro

Water Pollution

  As you know, pollution is a result of human activity that dirty and contaminated the environment. 

  Although the oceans are very large, they are also polluted by human activity.
And if many years ago it was thought that there was no problem with dirty water, now pollution is very visible.For example, the effects of pollution on marine species and also in humans are many and most serious are diseases.
  The Man fills the sea with “contaminants” that, by the effect of the waves, are drawn into the sands of estuaries and bays. These “contaminants” are then absorbed by animals that make part of the food chain.
  Although it may not see it, pollution affects us all.Even though we do not drink the sea water, we use it very personally, taking baths and eating the fish that may be contaminated aswell.Very soon, diseases will pass from sea animals to us,humans.It is clear that not only is the man who pollutes the sea, all the animals leave their "rubbish" on the environment too, the only difference is that we do it in such large quantities that nature cannot handle it.
  Thus, we are ruining one of the most valuable assets that exist on our planet: water.
  Pollution of reserves is the big problem for the future of the planet's supply of drinking water. The accumulation of garbage near the springs and the infiltration of fertilizers contaminate underground water sources, polluting a valuable asset that is priceless.
  In the larger cities, the dumping of sewage and industrial waste at sea and in rivers is also a major threat.
  When you pull the toilet of the toilet, we do not think of where the dirty water is going.
If not treated in a treatment plant can cause havoc in the ocean!
  In these places (the ETAR – Portuguese name of the specialized stations which decontaminate the water) they use chemicals that separate the dirt from the water, which may well follow its course without polluting the environment.
  Many industries (still) lay waste in the waters of its production, without treating it. Sometimes they are toxic waste (and smelly) that destroy the life of rivers and eventually reach the sea.
Oil spills
  Another major problem, perhaps resulting in a more visible impact, is the oil spill in the sea.
These spills are usually accidental and occur when the big tankers have problems or sink.
The most serious point is that there are often spills purposefuly!
 Ships decide to clean their holds in the sea, which

is highly forbidden, but much cheaper than doing it in port.And what happens when there is a spill?
What we saw on television in late 2002 with the ship 'reputation': plants, birds, mammal, fish and crustaceans that inhabit the area (Galicia, Spain) were affected by the oil spill. Because of the oil spill, living beings die intoxicated.
  And if you think that the birds can escape, you are sorely mistaken. They dive to catch fish and then, with the weight of crude oil (the name of crude oil) in the wings,the birds no longer fly.
  But this polluted water is not good for us: it is unfit for swimming or diving. Bathing in a dirty beach can make people sick.
  Did you know that just one drop of oil can destroy hundreds and hundreds of gallons of water?

Posted by: João Malaquias

Ice Melting

  The purpose of this post is to talk about ice melting. As we all know, this background is caused by global warming. This phenomenon is accelerating incredibly and unexpectedly fast nowadays, beating the old records. This record thing started in the 90's (which were also the warmest years on record). Scientists say that this intense melting is among the first observable signs of human induced global warming, because of the release of carbon dioxide and other greenhouse gases over the last century.

  The ice caps have a remarkable function for planet Earth because it works as a mirror, which reflects big part of the sun's heat back into space, and therefore, keeps it with an acceptable average of temperature. This means that if the ice continues to melt, there will be life-threatening consequences. As an example, the Arctic sea ice used to cover almost the size of the United States in the 1960's. Its average of thickness has been dropping radically : the last measurement showed a decline of nearly 40% in less than 30 years - 3,1m to 1,8m.

  Another equally serious case is Antartica's. It represents 91% of the world's ice. Over the past decade, four ice shelves have entirely desintegrated : Wordie, Larsen A, Larsen B, Prince Gustav and Wilkins (this last one is approximately the size of the state of Conneticut, or about half the area of Scotland).  Places like Greenland, Alaska, Himalayas, Ushuaia (Mont Olivia) are also in danger.

  This giant misfortune will result a rise of the sea levels (as an example, by the year 2100 the Portuguese coast will be submerged), endangered lives and a decrease in the variety of the animal species - the lynx, iberian wolf, bengal tiger, black rhino, penguins, polar bears, among others. Another consequence is the damage of properties and animal habitats.

(image - google.com ; http://www.guardian.co.uk/science/2009/sep/03/arctic-temperatures-climate-change , http://www3.telus.net/thegoodnews/report-5.htm )

Posted by : Joana Fernandes

Pollution

What is pollution?

Pollution is the contamination by a chemical or other agent that renders part of the environment unfit for intended or desired use. These uses also and very importantly include all wildlife and ecological requirements to sustain life in all its natural forms.

Causes

Pollution is usually caused by human actions, but can also be the consequence of natural disasters.

Consequences

Among the most serious consequences of pollution can be highlighted: the destruction of the ozone layer, acid rain, the increase of the greenhouse gases and smog.

Solutions to fight it:

- Reducing the emissions of carbon dioxide to the atmosphere

- The use of filters in the chimneys of factories
- The promotion of alternative energy, clean or non-pollutant
- The elimination of the use of CFCs
- The use of “clean” technologies.
- Recycling
- The reuse of certain products, for example the use of glass bottles instead of disposable plastic
- The reduction in the use of certain products more pollutants, such as plastic.

Posted by: Ana Rita Fragoeiro

A quick extinction

I'm going to talk about the Passenger Pigeon (or sometimes called Wild Pigeon). This animal was hunt to extinction not long ago, in nearly the beginning of the 20th century.

As you know, regular Pigeons are one of the most abundant type of bird we see, it adapts fairly well to a urban invironment, and there are some in almost every city with a park, or green space. What's amazing about the Passanger Pigeon, it's how fast it was hunt to extinction, since they were the one of the most abundant bird in the world and the most common in North America in the 19th century, and the last one of them was hunt down only a century later. The bird travelled in very large flocks, usually containing as much as 2 billion birds, wich makes it one of the species that creates the largest flocks in the world. One of the factors that contributed to this birds disappearence, was the loss of habitat when the europeans started to settle in further into the lands, although the primary factor ocurred when pigeon meat started to be sold to the poor and slaves, as cheap food they could afford more easily than pork, or cow meat. After these events, the number of Passenger Pigeons started declining, first slowly, then rapidly into their extinction. Hunters knew that the species were nearly extinct, and still they were hunt to the very last.

Martha, who was though to be the world's last Passenger Pigeon, died on September 1 of the year 1914, in Ohio. Today, a memorial statue of Martha is located next to the mississipi river in Wisconsin. This is a living proof of how much destruction the human race can do to the same nature it lives in.

Passenger Pigeon

Pedro Batim

Global warming it's a reality

Global warming is real and it threatens all of us.

Some people think that climate changes are no big deal, something distant. Some people also believe that if the temperature does augment one or two degrees, it’s meaningless.

Well, it’s not. It’s incredibly important to everything in this planet and surely we all want a better planet for us and for the next generations.

It’s true that Earth was already gone through some periods of higher or even lower temperatures but not as quick and dramatic like it has been happening now.

We are responsible for this. We cannot pretend that it’s not an issue of ours and that we can simply put it aside.

If the clime changes everything will change as well, our lives will be affected in many aspects.

Let’s try to protect this beautiful planet. Simple acts like changing old bulbs, recycling our garbage, control our water consume and prefer eco-friendly house appliances are more helpful than we think!

sources: http://www.greenpeace.org/ varied documents
http://www.youtube.com/watch?v=nMNu68gsAPA Greenpeace add

Ana Rita Costa

The Bottom Line

Over fishing is a very serious problem within our society. If we worn out this important resource, it will have a tremendous effect not only on the marine ecosystem but in the planets entire life beings, humans as well. Have you ever asked yourselves how would the world be without oceans? They seem something so usual that we barely acknowledge their vital role on our planet.

Humans have all ready caused huge alterations on seas, on its fauna and flora. We already damaged irreparably the fish steadiness, by reducing or even extinguishing some of the most consumed but now, with a serious crisis not only economical but also ecological, fisherman’s are also trying deep oceans bottom line fishing. This area is surely one of the most unbelievable amazing and with more biodiversity places on Earth. A single pass of bottom line fishing nets are able to destroy thousands of year’s animals and plants.

Seas are essential for our planet’s balance. Oceans bottom lines are an amazing part of our world with unimaginable creatures and wonderful plants. It’s up to us try to give them a voice and show other people that this environment should be preserved.

sources: http://www.greenpeace.org/ varied documents
http://www.youtube.com/watch?v=-0616msQC_M Greenpeace video

 

Ana Rita Costa

Introduction

Hello everyone! The purpose of this blog is to give information about our planet's current situation in many aspects, such as renewable energy sources, natural disasters, high temperatures, endangered species, pollution, population growth, greenhouse effect, etc.We are 11th grade students from Raul Proença Secondary School and this is a project for the English subject.

Help us saving the world : think globally, act locally.

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