Food for thought

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• 3.9×10²²J : estimated energy contained in the world's fossil fuel reserves as of 2010
• 2.2×10²³J :total global uranium-238 resources (using fast reactor technology)
• 3.8×10²⁶J : total energy output of the Sun each second

Every single second, the sun outputs more than a thousand times the sum of all of the fossil fuel and nuclear fusion fuel we believe exist on the Earth

(source)