The Simplest Explanation Of Global Warming Ever
Earth energy budget diagram, with incoming and outgoing radiation (values are shown in W/m^2). Satellite instruments (CERES) measure the reflected solar, and emitted infrared radiation fluxes. The energy balance determines Earth's climate. Let's play pretend for a moment. Pretend, if you can, that you've never heard about the idea of global warming before. Pretend you've never heard anyone else's opinions on the matter, including from politicians, scientists, friends or relatives. If you were going to make a genuine inquiry, there would instead be only two questions to ask and answer: is the Earth warming or not, and if so, what's the main cause? This is a question that was tailor-made for the enterprise of science to answer. There are really only two things that determine the Earth's temperature, or the temperature of any object that's heated by an external source. During the day, we absorb energy from the Sun; this is the power inputted into the Earth. But that's not the full story.
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