[Free Registration/Login may be required to access all resource tools.] Compares and contrasts the short-term phenomenon of weather with the long-term average of weather, otherwise known as climate.

[Free Registration/Login may be required to access all resource tools.] Volcanoes can form at hotspots away from plate boundaries. This article discusses hotspot activity and how it leads to volcanism in the oceans.

[Free Registration/Login may be required to access all resource tools.] Explores some of the factors that affect the cost of resources, such as availability, ease of extraction, and politics.