How are we changing the physical environment of Earth’s surface?

“Accelerated human modification of the landscape and human-driven climate changes are fundamentally altering Earth’s surface processes and creating ecological challenges that scientists and policy makers are struggling to address. The environmental impacts of human activity are expected to increase as the climate continues to warm and as the world becomes progressively more populated, industrialized, and urbanized.“ (NRC 2010, p.21) “Because natural processes vary spatially and across scales, a geographical perspective is essential to understanding their nature and character. The perspectives and tools of the geographical sciences used by geographers, geologists, ecologists, and others provide insights into soil erosion, flood magnitude and frequency, and ecological adjustments to climate change on both contemporary and paleotimescales.”(NRC 2010, p.22)

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