During World War I, the government nationalized telephone and telegraph lines in the United States from June 1918 to July 1919, when, after a joint resolution of Congress, President Wilson issued an order putting them under the direction of the U.S. Post Office.
Quick Answer. Some of the things that cause temperatures change on Earth include the greenhouse effect, the amount of heat from the sun reaching Earth, deforestation and changes in Earth's surface with regards to reflectivity. Temperature change on Earth has become a major topic of debate in recent years because of its negative effects.
The cause of the recent change in climate is mainly due to an increase in greenhouse gas emissions. Because greenhouse gas emissions are continuing to increase, this warming will also continue (CSIRO 2001). Greenhouse effect | What does this mean | Tropical savannas and climate change | References |.