The sun is essential for life on Earth, providing light and heat vital for maintaining climatic balance. Over time, the sun evolves and changes, which can affect life on Earth. It fuses around 700 million tons of hydrogen into helium each second, generating energy that is enough to power humanity for approximately 650,000 years. Basic physics allows for calculations predicting Earth's warmth based on the sun’s energy emissions. Only a tiny fraction of solar energy impacts Earth, correlating to its distance and reflectivity, influencing environmental conditions.
The sun fuses about 700 million tons of hydrogen into 695 million tons of helium every second; the missing five million tons is converted into energy, creating immense power.
The sun produces 4 x 10^26 watts of power, enough to meet humanity's total energy consumption for around 650,000 years.
Basic physics principles can calculate how warm Earth should be based on the sun's energy emission rate and the tiny fraction of energy that actually heats the planet.
A small fraction, about half a billionth of the solar energy emitted, is intercepted by Earth, influencing our climatic conditions.
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