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Climate change Brought to you by: Kenneth Chow 1J Johnny Tong1J Jacob Cheng 1L Anthony Lam 1L The situation(From different angles) Factories avoid a lot of greenhouse gases into the air. Nowadays, almost all of the surface of the Earth is polluted by these greenhouse gases. These gases are harmful to our health.Also, cars disperse a lot of greenhouse gases. U.S.A. has the most serious problem of cars dispersing greenhouse gases. As you see, the situation is very serious now. A factory which is dispersing exhaust gas The possible problems Human can not live in the earth The global temperature is increasing and climate changes make human more difficult to survive. Human can’t live in a very high temperature situation. So, if the global temperature continue to rise, human will be extinct in the future. Also, as the global temperature is increasing, icebergs are melting and the sea level is rising. Perhaps water will cover all the lands on earth, and the eco-system will be totally destroyed. If we don’t stop polluting our earth, it will be like this. The underlying problem When the Earth’s average temperature is rising, it’s likely to influence the rainfall and storm patterns.How can we produce less pollution that will release to the atmosphere in Hong Kong? Three tropical cyclones meet together. What a disaster! Global warming Global warming is the key part of why is climate change formed. Global warming is the result of burning fossil fuels, due to increasing human activities. Greenhouse gases traps the heat from the sun and the Earth A chart of ocean circulation conveyor belt become hotter. which is the most important factor of climate change Global warming Because the global temperature is rising, icebergs and snows are melted. If the global temperature continues to rise at the current rate, in 50 or 70 years later, in summer, there will not be any ice cape in summer at the North pole. Compare the two counties ‘ numbers of glaciers, they are all decreasing. This means the seriousness of global warming. Brief Introduction of Climate Change Climate change is the result of global warming which is the result of greenhouse effect. Roughly saying, the summer becomes longer and winter becomes shorter every year, because the Earth is getting hotter each year. Most place on earth is hotter that the average. Brief Introduction of Climate Change Global warming is the key part of why is there climate change, as we have mentioned. We have to act to produce less greenhouse gases. Global Warming prediction of 2070-2100 vs. the average temperature of 19601990 Brief Introduction of Climate Change If the water level keep increase, the sea water will flood into the low lands. Not only the lengths of the seasons have changed, but also the height of the water levels. The Victoria Harbour’s water level had risen at an average rate of 2.3millimetres in the past 50 years. The analysed facts and results There are more and more typhoons and tornados in the U.S. in 2004. There were 1,717 tornados in the U.S. in 2004 and it break the old record. In the year 2001, there were only 1,236 of them. Japan also has set the all time record for typhoons of 10, which the old record is 7. It was said that it’s impossible to have hurricanes in the south Atlantic but the same year, a hurricane hit Brazil. Hurricane Kate The analysed facts and results The power station is the main source of greenhouse gases. It occupies 21.3% of the total. Most of Greenhouse gases is carbon dioxide which is 72% of the total. The pie chart of Greenhouse gases emission The analysed facts and results Variations of Carbon dioxide concentration over the last 400,000 years is showing a unusual rise since the industrial revolution. The solutions Replace regular light bulbs with compact fluorescent lights. Different kinds of compact Drive less, or drive only if necessary. fluorescent lights Recycle household waste. Use less hot water. It takes a lot of energy to heat up water. Avoid products with a lot of packaging. Turn off electronic devices when leaving a room or your home. (There are many other ways, it’s only a part of it shown in above. Remember that everyone can help The recycling bin in Germany save the environment!) Action Plan Plant the plants so that we can produce less greenhouse gases. Less using electrical energy and rely more on renewable energy sources,so that the quality of air will be better. Switch off the machines which use electrical energy when you do not need it,so that we waste less electrical energy. If we follow this plan, our future is as bright as this! Recommendations for our government Use a part of the surplus of one hundred billion in Hong Kong to change all the truck into trucks that can match up with the Euro 4 standard. Build nuclear fusion power plants (a technology presently far from development) and encourage car buyers to buy cars that run on hydrogen. Replace the old machines into new machines that are efficient but also environmental friendly in factories. Recommendations for our government Install the same type of streetlamps in some of the European countries, by reflecting the light came from the cars’ headlamps. Plant more trees, but the same time, save the trees! There are hundreds or even thousands of trees planted in the road side but, to be honest, there are not enough surface of soil exposing for water to get into the soil in order to water the trees. Removing much of the concrete around the trees will be perfect. A kind of light that reflect cars’ light (right side) Thanks We would like to thank the following information sources, without them, we can never finish our project. Wikipedia Google “An Inconvenient truth” DVD