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If the earth is in danger, Should we save it?

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Gemma Francis

on 19 September 2012

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Transcript of If the earth is in danger, Should we save it?

Monoculture means to do thing one way. Envirnomental monocultures are farmers the may grow one thing. the earth ,the moon and the sun are related to each other by the gravitational pull. without the sun, life on earth would not be possible, not just because of the need for light but also because of the energy it supplies. the moon orbits the earth and the earth orbits the sun. earth is always spinning,every 24 hours it turns or rotates on its axis, Taking us with it. when we are on the side that faces the sun, we have day.When we face the dark sides this is when of course, we have night. we were looking down on Earth from above the north pole, we could see that Earth rotates counterclockwise, and we would watch daylight and darkness sweeping across our globe from east to west. HOW THE SUN,EARTH & MOON ARE RELATED! DAY & NIGHT!!! Summer, Autumn, Winter & spring!!! The earth is titled on its axis. As Earth moves around the sun different parts are closer to the sun at different times,Thats how seasons occur when the north poles tilts towards the sun, More light heats the northern hemisphere as the sun is high in the sky and days are long.This brings the change that we know as Summer.between these two seasons are Spring and autumn.where the region gradually becomes hotter and colder and it tilts towards or away from the sun. THE BIG BANG!!! About 15 billion years ago a tremendous explosion started the expansion of the universe. This explosion is known as the Big Bang. At the point of this event all of the matter and energy of space was contained at one point. What exisisted prior to this event is completely unknown and is a matter of pure speculation. The Big Bang actually consisted of an explosion of space within itself unlike an explosion of a bomb were fragments are thrown outward. The galaxies were not all clumped together, but rather the Big Bang laid the foundations for the universe. Since the Big Bang, the universe has been continuously expanding and, thus, there has been more and more distance between clusters of galaxies. Peak Oil IF EARTH IS IN DANGER SHOULD IT BE SAVED? Peak Oil Is about Fossil Fuels fossil Fuels are Dead
plants and trees that are thousands of years old. It takes Millions of years to for the fossil fuels to build up. Its starts off in the forests with trees, then a natural climate change brings down the trees,Water/sand/dirt.etc blow over the trees for thousands of years. Dead Plants and trees get more squashed, Then they are used for Gas, coal, oil , ETC. Plastic is made from oil, Oil is made from fossil fuels and There are no longer any fossil fuels left.Over 50 Years from now theyre could be know more plastic, Petrol,diesel or coal.This Means many things we use now may not be able to be made. Global Warming Global warming is caused by the hole in the ozone layer. The ozone layer is naturaly made. Cheimicals such as CFC Clump up and make holes in the ozone layer. When CFC was first made people didnt relaise it was causing the hole. Since then people have tried to stop polluting and heal the hole but its sill causing many issues, mostly because of its location. Because The Hole in the ozone is above Australia It has caused many health issues for Australians. Their is a large number of people with diagonised with skin cancer every year. Another Issues it Rising ocean. due to The South pole Melting, all Oceans are rising. If this continues in the future Some Flat counrtys Will be underwater. Monoculture Some farmers grow only One thing,
Then the pest and insects know where to go to eat it. Then they can attack the crops whenever.Making it hard for the farmers Considering thats the only the crops they grow. It would make more sense To grow two different crops in different spots so then if the pests find one lot then the farmers have the other crop. continental drift the land masses of the earth have not always been were they are today. At one stage they ere all joined to one land mass called Pangaea. The Crust of they earth is considered to have broken into a number of tetonic plates,That are moving independently in different directions. The continents themselves are lighter rocks sitting on top of these plates When two plates collide he softer . upper layers of rock are compressed and folded to become moutain ranges. the therory of the pangae was first though of by aflred Wegener Pangaea Started to break up in to smaller contients , called laursias and Gondwanaland. It drifted centimetre by centimetre over millions of years untill they arrived at where they are now. Astronomical/Geological time line The geologic time scale is a system of chronological measurement that relates stratigraphy to time, and is used by geologists, paleontologists, and other earth scientists to describe the timing and relationships between events that have occurred throughout Earth's history the Scale Shows At what time these events happened , and the order Mars Mars Has a thin cold Atmosphere, Which means water can not sit on The surface of mars for any length of time. Mars's atmosphere is believed to have changed over the course of the planet's lifetime, with evidence suggesting the possibility that Mars had large oceans a few billion years ago Earth is shielded from the solar wind by a magnetic bubble extending 50,000 km into space -- our planet's magnetosphere. Without a substantial magnetosphere to protect it, much of Mars's atmosphere is exposed directly to fast-moving particles from the Sun Mars is constanely filled with small Particles of dust (mainly iron dioxide) which gives the planet its reddish hue Biodiversity Biodiversity is the variety of all living things; the different plants, animals and micro organisms, the genetic information they contain and the ecosystems they form. Biodiversity is usually explored at three levels - genetic diversity, species diversity and ecosystem diversity. These three levels work together to create the complexity of life on Earth. Biodverstiy also has to do with food chains and webs Permaculture The word 'permaculture' contraction of permanent agriculture, or permanent culture The idea of permaculture is considered among the most significant innovations developed by Australians in the century since Australian federation. However like "Nature", the permaculture concept evolves with time making its definition difficult. For example, consider the words of Bill Mollison, i guess I would know more about permaculture than most people, and I can't define it. ... I'm certain I don't know what permaculture is. today permaculture can best be described as an ethical design system applicable to food production and land use, as well as community building. It seeks the creation of productive and sustainable ways of living by integrating ecology, landscape, organic gardening, architecture and agroforestry. Permaculture is also about careful and contemplative observation of nature and natural systems, and of recognizing universal patterns and principles, then learning to apply these ‘ecological truisms’ to one’s own circumstances. The focus is not on these elements themselves, but rather on the relationships created among them by the way they are placed together; the whole becoming greater than the sum of its parts. if one species for a food chain die then the hole web would be destroyed. Climate Change World Food Crisis The Earth is getting warmer because people are adding heat-trapping gases to the atmosphere, mainly by burning fossil fuels. These gases are called greenhouse gases These changes are happening because the Earth's air, water, and land are all linked to the climate. The Earth's climate has changed before, but this time is different. People are causing these changes, which are bigger and happening faster than any climate changes that modern society has ever seen before The Earth is getting warmer because people are adding heat-trapping gases to the atmosphere, mainly by burning fossil fuels. These gases are called greenhouse gases. Warmer temperatures are causing other changes around the world, such as melting glaciers and stronger storms. the earth is always changing. if you looom window long enough, and you might see the weather change. Look even longer, and you'll see the seasons change. The Earth's climate is changing, too, but in ways that you can't easily see It’s being called a “silent tsunami” – the first food crisis since WWII is threatening over 100 million people, including 20 million of the world’s poorest children. Rising prices for staples like rice means that fewer people are getting the food that they need, pushing more people into poverty.
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