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<p>of the Earth system, treated in its entirety with interacting physicochemical and <a href="page.php?w=Biosphere">biological</a> components as well as the impact human societies have on the components and vice versa. Therefore, the changes are studied through means of <a href="page.php?w=Earth_system_science">Earth system science</a>.</p>

<p><big> History of global-change research </big></p>
<p>The first global efforts to address the environmental impact of human activities on the environment worldwide date before the concept of global change was introduced.</p><p>
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