According to the International Atomic Energy Agency, nuclear power offers the ability to generate large amounts of energy from a relatively tiny amount of fuel, without releasing carbon dioxide and other air pollutants released by the burning of fossil fuels. Nuclear energy offers better reliability and more energy production than renewables and fewer environmental concerns than fossil fuels.
Compared to fossil fuels, the chief advantage of nuclear power is the lack of carbon emissions. A single 1,000-megawatt coal plant may produce more than 6,000,000 tons of carbon dioxide in a year. A comparable nuclear plant produces only around 830 tons of waste, most of it low-level radioactive waste that requires little special handling. Modern reactors produce less waste than older designs, and some new designs reprocess existing nuclear waste and use it as fuel.
Compared to renewables, the advantages of nuclear power are energy density, scalability and reliability. To generate 1,000 megawatts, a solar facility needs approximately 12 times as much land area as a nuclear plant, and a wind farm may require 36 times as much space. Nuclear plants can also ramp up their production when demand is high and power down when demand falls, unlike wind and solar methods that produce energy only when the resource is available.Learn More
Humans adapt to changes in the environment by genetic change, developmental adjustments, acclimatization, and cultural or technological advances. Of these, the fourth is almost uniquely human and has been the key to the species' success worldwide.Full Answer >
Strip mining involves removing the surface layers of earth, called the overburden, in rectangular strips to mine the mineral reserve underneath them. After a strip of ore is mined, another strip is prepared next to it. The waste rock from the overburden of the second strip is used to fill the first one. Typically, coal or other sedimentary rocks that lie near the earth's surface are strip mined.Full Answer >
Humans are destroying the environment through ways such as burning fossil fuels, deforestation, farming and industry, all of which produce copious amounts of greenhouse gases. The phenomenon of global warming is argued to be caused by humans due to the many ways humans pollute the environment with greenhouse gases.Full Answer >
It is estimated that there are more than 42 million penguins in the world. An exact number is difficult to obtain due to fluctuations in the populations of some species of penguin.Full Answer >