Global Warming T-Shirts

Global Warming t-shirts can be fun, and of course they can have double meanings as well. For example a guy could where this t-shirt. It could mean that he is complaining about the threat to the environment of global warming. Or perhaps, he is single and looking at a girl and thinking "it's getting hot in here, so take off all your clothes."

Global warming and heat do have a sexual connotation. Man by his economic activity, burning fossil fuel is send to be "getting the earth hot." But how does the earth then, "get off?"