What is nuclear energy and how it is obtained


Nuclear energy policy

Nuclear energy policy is national andnuclear power as part of their strategies on
international policy concerning some or alltackling  global  warming and climate change.
aspects of nuclear energy, such as mining for
nuclear fuel, extraction and processing ofIn 1999 the countries that relied most on
nuclear fuel from the ore, generatingnuclear energy were France (with 75 % of its
electricity by nuclear power, enriching andelectricity generated by nuclear power
storing spent nuclear fuel and nuclear fuelstations), Lithuania (73 %), Belgium (58 %),
reprocessing.Bulgaria, Slovakia and Sweden (47 %), Ukraine
(44 %) and South Korea (43 %). The largest
Nuclear energy policies often include theproducer of nuclear capacity was the USA with
regulation of energy use and standards28 % of worldwide capacity, followed by
relating to the nuclear fuel cycle. OtherFrance (18 %) and Japan (12 %) [2]. In 2000,
measures include efficiency standards, safetythere were 438 commercial nuclear generating
regulations, emission standards, fiscalunits throughout the world, with a total
policies, and legislation on energy trading,capacity  of  about  351  gigawatts.
transport of nuclear waste and contaminated
materials, and their storage. GovernmentsAccording to IAEA, nuclear power is projected
might subsidize nuclear energy and arrangeto increase to 17% share of the world's
international treaties and trade agreementselectricity production by 2020. They predict
about the import and export of nuclear60 new plants will be installed over the next
technology, electricity, nuclear waste, and15  years  .
uranium.
Policy  options
Since nuclear energy and nuclear weapons
technologies are closely related, militaryAfter a period of decline in the use of
aspirations can act as a factor in energynuclear technology following the 1979 Three
policy decisions. The fear of nuclearMile Island accident and the 1986 incident at
proliferation influences some internationalChernobyl, there has more lately been renewed
nuclear  energy  policies.interest in nuclear energy. Some policymakers
have returned to the 'nuclear option' because
The  global  picturethey see it as potentially able to address
dwindling global oil reserves and global
The status of nuclear power globally. Nationswarming with less greenhouse gas emissions
in dark green have reactors and arethan  fossil  fuel.
constructing new reactors, those in light
green are constructing their first reactor,For some countries, nuclear power affords
those in dark yellow are considering newenergy independence. In the words of the
reactors, those in light yellow areFrench, "We have no coal, we have no oil, we
considering their first reactor, those inhave no gas, we have no choice." Nuclear
blue have reactors but are not constructingpower has been relatively unaffected by
or decommissioning, those in light blue areembargoes, and uranium is mined in reliable
considering decommissioning and those in redcountries, including Australia and
have decommissioned all their commercialCanada[5][6]. Nuclear power also has a high
reactors.energy return on energy investment. Using
life cycle analysis, it takes 4 to 5 months
The status of nuclear power globally. Nationsof energy production from the nuclear plant
in dark green have reactors and areto fully pay back the initial energy
constructing new reactors, those in lightinvestment[7].
green are constructing their first reactor,
those in dark yellow are considering newBut policymakers must also balance their
reactors, those in light yellow aredecisions so that the concerns surrounding
considering their first reactor, those innuclear power are addressed. These include
blue have reactors but are not constructingthe problem of storing radioactive waste for
or decommissioning, those in light blue areindefinite periods, the potential for severe
considering decommissioning and those in redradioactive contamination by accident or
have decommissioned all their commercialsabotage, and the possibility that its use
reactors.could in some countries lead to the
proliferation  of  nuclear  weapons.
Installed nuclear capacity rose relatively
quickly since the 1950s, but since the lateProponents, including some national
1980s capacity has risen much more slowly,governments, claim that these risks are small
reaching 366 GW in 2005, primarily due toand can be lessened with new technology. They
Chinese expansion of nuclear power. Betweennote that France and all of the
around 1970 and 1990, more than 50 GW ofindustrialised economies of Asia see nuclear
capacity was under construction (peaking atpower as a key economic strategy, that the
over  150  GW in the late 70s and early 80s).safety record is already good when compared
to other energy forms, that it releases much
The growth slowed in the 1980s because ofless pollution than coal power, and that
environmentalist opposition, high interestnuclear power is a sustainable energy source.
rates, and energy conservation prompted by
the oil shock in 1973, the energy crisis inOpponents, including some national
1979 and the Three Mile Island accident andgovernments and many environmental groups,
Chernobyl disaster. In 1983 an unexpectedclaim nuclear power is an uneconomic, unsound
fall in fossil fuel prices stopped most newand potentially dangerous energy source and
construction of nuclear power plants.dispute whether the costs and risks can be
Electricity liberalization in the Unitedreduced through new technology. They note
States and Europe during the 1980s and 1990sthat Germany and Australia are
increased the financial risk of investing incommercializing renewable energy and energy
nuclear power. More than two-thirds of allefficiency technologies (see Renewable energy
nuclear plants ordered after January 1970in Germany and Renewable energy
were  eventually  cancelled..commercialization  in  Australia).
Nuclear power plants, however, do notOthers claim that nuclear power is a
directly generate any greenhouse gases, somerenewable source of energy
governments have therefore returned to



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