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Big Systems

Solar Radiation Around 100 trillion Watts or solar energy (light and infra-red rays) hit the Earth. That is around 1.3 kW/m2.
Cosmic Radiation These are high energy sub-atomic particles. Small in overall bulk that may affect Earth such as triggering lightning.
Comet hits These rarely happen now, but have occurred in the distant past. This must have been where most of our water came from originally.
Dust hitting Earth This could be as low as 5 tonnes per day, but could be several hundred tonnes. We don't know.
Heat Leakage Heat as infra-red rays.
Gas Leakage 3kg H2 and 50g He per second.
Created by: LukePalmer