Global Warming on Mars  Are you the one deleting this chunk that Ive added to the Global Warming article  While some skeptics of Global Warming declare that Global Warming is a hoax in its entirety some who admit that the global temperature is rising argue that it is not attributable to man and that it is a natural phenomenon  One argument for this theory is that a simultaneous phenomenon is happening on the planet Mars Mars Hints at Solar not Human Cause for Warming Scientists Say by Kate Ravilious  National Geographic via nationalgeographiccom  which suggests that Global Warming may not be limited to the only planet where human interaction could have influence In addition while Venus is the token example of an Earthlike planet globally warmed by excessive C in the atmosphere there is no manmade industrialism or other sources of greenhouse emissions present on Venus  I find nothing oppinionated about this entry and it is cited by a reputable source National Geographic and it portrays a valid point