2011年12月14日星期三

political science



And clean energy difference


Clean energy is not emission energy, including nuclear power station and" renewable energy", renewable energy is the raw material can be regenerated energy, such as hydropower, wind power, solar energy, biomass energy ( biogas ), tidal energy, renewable energy, energy depletion may not exist, so more and more attention in many countries, especially the energy shortage in the country.


Including conventional the clean use of energy, such as coal gasification and liquefaction; renewable energy such as solar energy, wind energy, hydro energy, ocean energy, geothermal energy, biological energy utilization; as well as new energy sources ( such as hydrogen fuel ) the development. Hydrogen fuel calorific value equal to 4 times the weight of carbon, fuel product is water, no pollution to the environment, is an ideal clean energy in the future.


Nuclear energy is clean energy, but the consumption of fuel, not renewable energy, investment is high, and almost all of the country, including the most advanced countries in technology and management, can guarantee the absolute safety of nuclear power station, the former Soviet Union and the United States the Chernobyl accident at Three Mile Island accident impact is very big, Japan also appeared the nuclear leakage nuclear power plant accidents, especially the war or terrorism the main objective of the attack, the attack may have serious consequences, so many developed countries are to build nuclear power plants in Germany, to gradually close all current nuclear power plants, but instead to renewable energy, renewable energy cost than other energy to high.


Renewable energy is the most ideal energy, can not be the effect of energy shortage, but also by natural conditions, such as the need for hydro, wind, solar energy resource, but the most important is the investment and maintenance cost is high, efficiency is low, so the generated electricity of high cost, many scientists now in actively looking to increase the use of renewable energy efficiency methods, with the shortage of resources, renewable energy will play a more and more important role.


The climate change debate


In the past thirty years, the United States of America previous governments on the issue of climate change attitude wavering, the relevant policy changes. During the Carter administration, the United States National Academy of Sciences on climate change human reason and inevitable consequences of making scientific assessment and recommendations for action.


However, in the early nineteen eighties, economic stagnation and conservative circumfluence background, Reagan government environmental regulation as the economic burden, adopted a series of " anti-environment" measures, set off a wave of" environmental protection counter". George H.W. Bush in the White House, in dealing with environmental problems on the continuation of the former government 's guiding ideology, in the mitigation of global warming trend slow, dubbed" the third term of the Reagan administration".


Although the Clinton administration from the beginning to face up to the problem of climate change, and will include the issue of climate change, the environment at the strategic height, to vigorously promote the international climate negotiations, and in 1998 signed the" Kyoto Protocol". However, due to the obstruction of the Republican Congress, the Clinton administration in its two term on the issue of climate change has failed to take meaningful action.


George W. Bush administration at the beginning, in the" political science" by climate warming trend, lack of scientific basis and announced its withdrawal from the" Kyoto Protocol". Although forced the international community more and more accusations and pressure, George W. Bush has issued a" National Energy Policy Act" ( 2005)," energy independence and Security Act" ( 2007), set out to encourage the development of renewable energy and new energy, improve energy efficiency and other content, but during his term of office has no limits on greenhouse gas emissions level.

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