Coal, oil and natural gas
Coal, oil and natural gas are the three most important sources of energy in the world. Almost 90% of the energy, which is used in the world, comes from coal, oil and natural gas.
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Greenhouse gases
There are a variety of gases in the air around the Earth. They are called greenhouse gases. The greenhouse gases are important for the Earth’s climate. They ensure e.g. that the temperature on Earth is stable.
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Aluminium
Here you can read about what we use aluminium for, where it comes from and how it is produced.
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The climate is changing
Here you can read about climate changes. The climate of the earth has always changed slowly. The changes have happened over the course of thousands or tens of thousands of years. But this is no longer the case.
Read more here
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A hot future
Here you can read about rises in temperature. If we don’t limit the burning of coal, oil and gas, we risk a rise in the Earth’s temperature by 1, 2, 3 or 4 degrees over the course of the next 100 years.
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The greenhouse effect
Here you can read more about the Greenhouse Effect. You have probably heard about it. The greenhouse effect. This is often discussed on TV and the on the radio.
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We use energy
Here you can read about energy consumption. All the things that you have in your room, and all the things you have in the house, are produced by means of energy.
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Wood
Here you can read about how we use wood and how it is transformed into the many things that we use every day.
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Waste and recycling
There is a big difference in the way that waste is treated from country to country. In some countries, things just get thrown onto a dump or out into nature.
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Iron and steel
Iron is extracted from iron ore, which is dug out of large mines. The largest iron mines are in Australia, China, Russia and Brazil.
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Plastic
Plastic is a new material. That is, if you compare it to materials like wood, metal and glass, which have been around for thousands of years. Plastic was only invented about 70-80 years ago.
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Paper
We use paper and cardboard in lots of different ways. It is actually very difficult to imagine a world without paper, cardboard and carton.
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Rich and poor
The rich countries in Europe, and USA and Canada, use lots of energy. Especially coal, oil and natural gas. The same is true of countries like China, Russia, India and Japan.
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Textiles
Making textiles is an ancient art. Once, all clothing was made by hand, but today it is almost all made in factories.
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Transport
We move around as never before - in buses, trains, ferries and planes. When we go to school and to work. When we visit family and friends.
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Energy sources
The countries of the world use more and more energy. Especially coal, oil and natural gas.
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Electronics
We use lots of electronics.
Elektronik er ting med ledning på eller ting, som virker ved hjælp af batterier.
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Glass
From the time you wake up, until the time that you go to bed, you use glass. You drink out of glass. You look out of windows made out of glass.
You look at yourself in a mirror made of glass.
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What can we do?
The climate is changing!
CO2 destroys the atmosphere! What can we do?
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Climate and weather
In Denmark, we talk about the weather a lot. Maybe because it is so changeable. In the space of a week, the weather can change from sunny and summery to sheets of rain and heavy winds which almost blow us all away.
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Copper
Copper is one of the raw materials that we use the most. It is durable and easy to shape. And copper is a material, which conducts heat and electricity easily.
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Metals
The most common types of metals are iron, steel, copper, brass, bronze, zinc, aluminium, tin and lead. The most valuable are platinum, gold and silver.
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