Not endorsing this point of view as I'm a bit skeptical of it, but over at Zeta Talk ( http://www.zetatalk.com/ ) Nancy Leider has been saying that as Nibiru approaches our solar system, large chunks of petroleum debris in its tail can burst into flame as it touches Earth's thin upper atmosphere with just enough oxygen to support combustion. Like I say, I don't endorse this theory but it's interesting enough to consider.