The presumption of anthropogenic (human-caused) global warming is a prevailing concern among academics, politicians, and environmentalists. On a daily basis, the media report that human-caused elevated levels of carbon dioxide in the Earth's atmosphere are responsible for increasing temperatures that will contribute to a rise in sea levels, tsunamis, food storages, starvation, and spread of disease. Hollywood celebrities such as Leonardo DiCaprio and Gwyneth Paltrow have joined Al Gore in perpetuating these predictions, convincing average citizens that the apocalypse is fast approaching.
