Today, nuclear power produces about 13 per cent of the world's electricity. One kilogram of nuclear fuel can have as much energy as 1.5 million kilograms of coal! When nuclear power was heat water. When you make a hot drink, it is good to heat just as much water as you need, not more. Rubbish Every day, people in Greece throw away s million plastic bottles. Around the world we produce millions of tonnes of rubbish every year. Some of this rubbish is recycled, hut most of it is thrown into big holes in the ground. Rubbish like this may be dangerous for animals and people for hundreds of years. Recycling an old aluminium drinks container only uses 5 per cent of the energy that we need to produce a new one. Rubbish is taken to places called recycling centres, where it is put into different groups. Later, each different kind of rubbish is broken into pieces and made into new materials. Recycling is easy to do, it is good for the natural world and it saves a lot of energy is there a recycling centre near you? Saving energy means thinking more about the things that we do every day If we do this, we can stop a lot of pollution, and save money too!, some people thought it was the answer to all our energy problems. Today, many people are afraid of it. So what is nuclear power, and what are the dangers? Everything around us is made of atoms. Some metals like uranium are radioactive, which means that the centre of the atom can break. The process of breaking the centre of the atom is called nuclear fission, and it is this process that produces nuclear energy. Uranium 235, the type of uranium that we usually use for fuel, is found in rocks around the world. It is difficult and expensive to get it from the rocks and make it into fuel. In nuclear power stations, sticks of uranium 235 fuel are put inside a place called a nuclear reactor. Other sticks called control rods go between the sticks of fuel. They stop the reactor from becoming too hot. In