Jsou sci-fi filmy pouze fikcí nebo jsou reálným obrázkem o budoucnosti naší existence? – esej anglicky
Are sci-fi movies just fiction, or they are real picture of our existence future?
There was developed a lot of theories in the world which says how our existence and the existence of our planet finish. It is very difficult to say which theory is the right. We can surely say that if humanity will continue in destroying the planet in the same rate, our next generation truckle to unnatural evolution and lots of species die off. I have decided to write about one theory which developed two American scientists Peter Ward and Donald Brownlee. Ward and Brownlee combine the discoveries of astronomers and Earth scientists in other specific disciplines. Astronomers are well-poised to study the ends of other worlds, while paleontologists can tell us about „worlds“ that have already ended on our planet, such as the death of dinosaurs and other signposts in the rock and fossil record.
These scientists see future in theorem named as track round shot. The life becomes less various, less difficult ad less plentiful. They claim that last form of life will be the simplest bacteria. The solar system is not as safe as we thing. The risk of asteroids is very high and the end can come very soon. In my opinion this theory is not just a scientific scenario and Ice age can come again. The Ice age stricken our planet once and nowhere is written that the Ice age can come again. The Ice age can come in many periods, although it seems to by illogical because the planet is passing through warming, this fact is proofed and scientists are sure about it. In past happened that the difference between equinoctial places and poles was very high. The effect of this was that the transpiration of water around equator increased and water steam was driven still powerful winds to poles. Besides we can watch it now for example : hurricanes, tornados and very powerful winds. In places of poles the water will be accumulate in ice and it grows up the ice coat. The ice coat expands around and thank to its white color will reflect. Poles and places around will be chilled and chilling affects all other places.
Global warming is in fact the biggest problem of our planet. The impacts of global warming are menacing. Concentration of carbon dioxide increased for 30% and it is on the highest level in last 450 000 years. The concentration of methane increased for 145%. The paradox is that thanks to greenhouse gases which we eject to atmosphere we prolonged the short period between-Ice age and we are taking away the Ice age, which is surly coming. In consequence of warming, it is supposed that the temperature grows up almost for 6°C. It would mean huge climatic changes, move climatic zones for 500k kilometers and rise of sea level for tens meters. The process of warming should be stopped after the year 2010, when the Gulf Stream collapse. Until the year 2020 should come vehement cooling and the Planet should be crusted. According to computer models, the new Ice age will last no more then 10 million years. Then continents start with moving to south, and gradually put together a new super continent. A specialist says that our planet passed warm and cold period. They assume that this is a warm period. In middle Ages it was very warm but two hundred years ago, was whole Europe very cold. For example London, everyone knows that winter In London is very mild, but e 150years ago the famous river Themes was every year covered with ice, and there was arranged winter markets every year. 1816 –this year is known as “year without summer” it was the hottest year and some specialists assume that the reason for that was a big eruption of a volcano Tambora which erupted in 1815. We may „freeze“ again in the future as we have in the past. This could be as severe as another „Snow Ball Earth“ episode or it could just be a continuation of glacial-interglacial cycles. On the long term, the fate is fry and dry. The Sun continuously gets hotter and its heat ultimately melts the Earth’s surface- and worse. Greenhouse gases have the biggest part in warming of Planet. The influence of Human generation evoked a global warming. I think that the Industrial revolution initiated the epoch of global warming. The question is what is coming in next 50 years? Is coming another Ice age? Is coming destruction of our civilization? In my opinion if we will not make any changes, the catastrophe is surly coming. People should to realize that the sort of our planet is critical and that each of us can make some arrangements to improve the tragic condition of our planet.
Global warming is not only dangerous for our planet. Much more dangerous is for us life-giving sun. The sun is giving on every square meter on Earth’s surface 1000 watts and the energy causes that the day million times brighter then night. The astronomers claim that the Sun is 30 % higher now then it was millions years ago. In the first period the sun destroys plants, the paradox is because the sun will give more sun to plants, but it is wrong suggestion because the influence of higher temperatures brings higher erosion and there will by less of carbon dioxide. The photosynthesis will not be working. The computer analysis says the critical period will come in 500 millions years. As everyone knows without plants is not oxygen, and it means that after expiring plants expires our existence too.
All of these theories seem to be very catastrophic but there is lots of other theories which talk about expire of our planet. They seem to be even more worst then the theory above. Scientists found out that our planet is loosing very fast water resources. They suppose that in 500 million years will be not water here. The actual theory which developed Japanese scientists claims that this catastrophe can turn up at the end of this century. The reason is leak of water to the space. Although most of the water returnees back as rain-falls, some part stays in the space is moving to place where it is spread into oxygen and hydrogen. While oxygen stays in atmosphere, light hydrogen lea into the Space.
Another theory of the end of the earth proofs that here is much bigger threat. The move of Earth desk is still strong, and between gap inform huge mass of water into the glowing nucleus if the Earth. Japanese scientists counted that that thanks to this process the earth is loosing 1,12 milliards ton of water and the process is still faster and faster. The process causes all catastrophes such as earthquakes and tsunami which are in last years very frequent.
Is coming crash with Galaxy? Three hundred kilometers per second is getting closer another dangerous. It is a spiral galaxy named M31, which inevitably hit our planet. It is supposed to come up in 3 milliards years. Scientists do not know whit might happen but it definitely endangers life on the planate and it might destroy it.
All of theories about destruction of our planet are just theory and we could say that it is just question of millions years, but in my opinion I see the biggest dangerous in global warming. Humans are destroying the Earth still faster and faster. There should be established same changes which help to protect our environment. We should stop the way of thinking how to earn as much money as possible. People should find as their main interest to protect our world.
- Essay –
There was developed a lot of theories in the world which says how our existence and the existence of our planet finish. It is very difficult to say which theory is the right. We can surely say that if humanity will continue in destroying the planet in the same rate, our next generation truckle to unnatural evolution and lots of species die off
2) Pictures – The pictures which show the effects of global warming