Video on Arctic bow head whale:http://video.nationalgeographic.com/video/player/animals/mammals-animals/whales/whale_bowhead.html
Japan’s Nuclear Crisis and Spent FuelStatus of NuclearReactors atFukushima DaiichiPower Plant:http://www.nytimes.com/interactive/2011/03/16/world/asia/reactors-status.html?ref=asiaWho wants 66,000tons of hot nuclearwaste in USA?Video:http://www.cbsnews.com/8301-31727_162-20046053-10391695.htmlYucca Mountain, Nevada
Nuclear Weapons Radioactive fallout from weapon test present another problem with radiation in the environment and human exposure. 1-Atmospheric 2-Underground 3-Exoatmospheric 4-UnderwaterUSA Nuclear weapon test at Bikini Island in South Pacific (1946)
In 1997 the U.S. National Cancer Institute estimated up to 75,000 cases of thyroid cancer resulted from these tests. U.S. federal government has paid over $500 million to compensate citizens who developed cancers from these tests.Per capita thyroid doses (Rads) from exposure to Iodine-131from atmospheric nuclear tests conducted at Nevada Test Site Luckily the half-from 1951-62. life of I-131 is 8 days.
USA: >1,150 tests (>300 atmospheric)Soviet Union: >700 testsFrance: >200 testsUK: 45 testsChina: 45 testsNorth Korea: 2 tests (most recent)Limited Test Ban Treaty (1963) endedatmospheric, underwater and outer space testing.Underground tests were still permitted.Comprehensive Test Ban Treaty (1996) ended allnuclear testing of any kind.
Energy is the capacity or ability to do work. kinetic energypotential energy
Video link of alternative energy:http://video.nationalgeographic.com/video/player/environment/energy-environment/alternative-energy.html
In ecosystemsenergy flows through decomposersa food web consumers producers
Video of grizzly mom teaching cubs how to fish:http://video.nationalgeographic.com/video/player/animals/mammals-animals/bears-and-pandas/bear_grizzly_teachingcubs.html
Video on red panda named Farley:http://video.nationalgeographic.com/video/player/animals/mammals-animals/bears-and-pandas/panda_red_farley.html