Air pollution, solar flaring etc, no matter which you choose to believe, all of these share the same conclusion - the Earth is heating up. NASA has released an animation on global warming based on five-year averages. Watch it.
Even if the recent natural disasters do not seem to a sign that something is happening to the Earth to you. You must be feeling hotter these days, but sadly most of us belong to the category. That is, not much different from the frogs in the pot of cold water sitting on the stove, and we all know what happens to the frogs in the end.
This visualization was prepared by NASA, based on five-year temperature averages. The Earth cannot afford to wait anymore while we still busy ourselves bickering over which countries should play a bigger role in slowing climate change.