![]() ![]() Eventually this energy also heads toward space, but some of it gets re-absorbed by clouds and greenhouse gases in the atmosphere. The rest gets absorbed, heats the planet, and is then emitted as thermal radiative energy the same way that black asphalt gets hot and radiates heat on a sunny day. Some of this energy reflects off of Earth’s surface or atmosphere back into space. Radiative energy enters Earth’s system from the sunlight that shines on our planet. But human activities are throwing that off balance, causing our planet to warm in response. Our planet is constantly trying to balance the flow of energy in and out of Earth’s system. A NASA study has confirmed with direct evidence that human activities are changing Earth's energy budget, trapping much more energy from the Sun than is escaping back into space.Įarth is on a budget – an energy budget. ![]()
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