A BOMB 1945
ONE NIGHT'S STREET LIGHTING NTC
Figure 12.1 The relationship between the time and length scales of a range of meteorological phenomena together with their equivalent kinetic energy (KE) (joules). The equivalent KE values are shown for some other human and natural phenomena. 'Comet impact' refers to the KT (Cretaceous/Tertiary event). The Big Bang had an estimated energy equivalent to I062 hamburgers!
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Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.