Ever wished you had a snazzy way to silence climate change skeptics? If you have an iPhone, you're in luck: A recently launched app called Skeptical Science provides a list of common skeptic arguments—and the science to refute each claim.
So if someone says "Climate's changed before," you can whip out your iPhone and retort, "Natural climate change in the past proves that climate is sensitive to an energy imbalance. If the planet accumulates heat, global temperatures will go up." Scientific arguments are sourced to reputable studies from organizations like the National Oceanic and Atmospheric Association.
A handy tool for heated debates.
Click here for a list of other green-friendly iPhone apps.