The Earth Sticker / Globalwarming Reminder

Typically, many people connect factories and cars with carbon dioxide emissions. Fossil fuel that is used to make electrical energy is one of important cause of global warming. But many people not recognize the fact that use electronics in everyday life bring about carbon dioxide emissions indirectly. I think that it is the most important subject that conversion of recognition of people.
“If product is been hot, the earth is been hot.” If [the earth sticker] put up on place that heat produces in product, warning message 'stop global warming' appears changing as color of the earth is red.