Fission—the breaking apart of atomic nuclei, the process underlying nuclear energy—emits no carbon dioxide. As we all know, nuclear reactor generates power from a cluster of fuel rods inside its core, each filled with uranium oxide. Every time an incoming neutron bombards one of the uranium atoms, the atom splits in two, expelling energy and releasing more neutrons, which in turn collide with other atoms and establish a chain reaction. The cumulative heat from this process boils water into steam, which spins a turbine to create electricity.
bibilography: http://discovermagazine.com/2009/jun/08-new-tech-could-make-nuclear-best-weapon-against-climate-change
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