This group of historians and history teachers convened in 2006â2007 to review. the AP U.S. History course and provided recommendations to ensure that the. historical thinking skills, themes, and scope of the course are aligned with the. expectations of college and university survey courses.
Climate change can also be caused by human activities, such as the burning of fossil fuels and the conversion of land for forestry and agriculture. Since the beginning of the Industrial Revolution, these human influences on the climate system have increased substantially.
The external climate forcing processes and the internal climate forcing processes except the man-made processes are grouped together as natural causes of climate change while the man-made processes are the anthropogenic or human causes of climate change. The natural causes are believed to even out eventually and are not considered to be responsible for climate change.