6分钟。。 1. World is changing,people now become to expoit Shell GAS and LNG... For Shell gas, it is beneficial since it can limit the power of political pressure. For LNG, it is beneficial since it will impact the behavior of 普京。。。 2. Gas is beneficial, though it may not be plentiful and chip, it is cleaner. Although we should strenghten the process before and after the environmental audit, it is true that once gas is on the ground, they are cleaner. Gas do not have the side effect brought by oil and coal, such as mercury, ... and ... 3. But the impact of gas to global warming is mixed. Sruely, gas produces less co2 per unit than coal and oil. It does not necessarily that gas will do less harm to the environment. If gas is very cheap, then people will curtail their consumption of nuclear energy and 新兴能源, which produce far less CO2 than gas. Thus, the benefit brought by gas is offset the this process. 4. Moreover, sulfer emitted by coal is beneficial to the world. Since sulfur can reflect the heat emitted by the Sun, it helps to maintain the temperature on the earth. China has greatly contributed to this process!! however, if we change to gas, no such sulfer will exist, and the earth will be hotter. 5. Admittedly, volcanic eruption can embit sulfur, but we do need some artificial sulfur. We may explore new tech, but the earth is not a place for scientific reasearch. So we need to do more things to ensure that the gas can really do good to the earth....... 原来我真的可以记住这么多。。
The "gas" and "boom" can be 并列, shell gas would be traded more freely. Since the add of shell has and LNG, the gas market will be swelled. Gas is better for cleaning the ground, so it will benefit human if we use it instead of coal. However, gas plays two different roles in global warming issue. One is that gas can actually replace the coal and produce less carbon-dioxide, this is good for us. But more filled gas will also replace the low-carbon nuclear,etc, in this case, the more gas used, more green energy will be consumed. A recent study shows that the consumption of green energy will balance out the consumption of coal in current time. A further point is that the sulphur can be emitted from the carbon-dioxide(I forgot) to the air before hitting the ground, and sulphur can cool the air. So if the coal will be replaced by gas, such short term cooling effect will be eliminated. China currently produces coal to the air regularly, so this actually lengthen the global warming, but if we replace coal with gas, the problem will be raised. Can the technology solve such problems? Some scientists claimed that the volcano eruption can bring large amount of carbon dioxide, so this will help to cool the air. However, other peoples hold different point that there's no particular technology could solve such problem, more discoveries will be needed in the future.(后面自己编的，想不起来了）
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发表于 2011-8-9 18:27:28
