Essential Cosmic Pers. -Modern Mast. Access
Essential Cosmic Pers. -Modern Mast. Access
7th Edition
ISBN: 9780321928511
Author: Bennett
Publisher: PEARSON
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Chapter 11, Problem 53EAP
Summary Introduction

To Explain:

How a better understanding of the Sun might help us comprehend the threat posed by greenhouse gas emissions. Why is it so difficult to develop a clear understanding of how the Sun affects Earth's climate?

Introduction:

When sunlight reaches Earth's surface, it can either be reflected back into space or absorbed by Earth. Once absorbed, the planet releases some of the energy back into the atmosphere as heat (also called infrared radiation). Greenhouse gases like water vapor (H2O), carbon dioxide (CO2), and methane (CH4) absorb energy, slowing or preventing the loss of heat to space. In this way, GHGs act like a blanket, making Earth warmer than it would otherwise be. This process is commonly known as the "greenhouse effect."

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