Global Warming on Mars 
Are you the one deleting this chunk that I've 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, 2/28/07, National Geographic via nationalgeographic.com.  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 Earth-like planet globally warmed by excessive C02 in the atmosphere, there is no man-made 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.