Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the last of three Science Objects in the Earth’s Changing Surface SciPack. It explores the natural and human influences on landscape evolution. These influences sometimes accelerate or slow down the process of landscape evolution. Human activities such as deforestation, accelerated global warming, and mining have impacted Earth’s changing surface. These activities are not new processes but often increase or accentuate the natural processes. When natural processes are accelerated, humans are often affected by the changes in their environment.