Let's hope that alien environmentalists have been as outnumbered by polluters as their counterparts have been here on Earth. Someday pollution could very well be the key to discovering life on other planets.
In a paper to be published in Astrobiology, astronomers lead by Jean Schneider of the Paris Observatory in Meudon, France suggest that light and chemical pollution could point the way to alien civilizations. Given the right mix of telescopes and sensors scanning alien planets, it could someday be possible to detect substances like CFCs that aren't naturally formed.
Light pollution could be another thing to look for. Artificial light could show up on readings of planets as noticeable variations from what's expected.
Current technology isn't quite up to snuff rigth now; we have a few cycles of technological advancement to get through before we can actually start looking for alien pollution, but it's a really interesting idea to start tacking towards.
Are you on Twitter? Follow me (@sheagunther) there, I give good tweets.
And if you really like my writing, you can join my Facebook page.
The opinions expressed by MNN Bloggers and those providing comments are theirs alone, and do not reflect the opinions of MNN.com. While we have reviewed their content to make sure it complies with our Terms and Conditions, MNN is not responsible for the accuracy of any of their information.