In case you haven't heard already, check out the possibility that the north pole won't have ice this year for the first time in recorded history.
When I heard people compare the recent flooding to 1993, which was supposed to be a 500-year flood, I thought of writing a post about how scientists have been telling us that this is what we can expect to happen more often due to global warming. Scientists can't blame specific natural disasters on global warming but they do say disasters will happen more often and be more severe. Amy Goodman beat me to the punch by making the same point in an excellent column.
Some of the flat-earthers claim we should wait for proof of global warming before we start making major changes. The trouble is that there's never going to be a flood or hurricane with a sign that says "I'm 10 times more severe due to climate change." The people with a vested interest in the oil and coal industry, and their spokesmen in Congress and talk radio, will never see the proof they ask for, no matter how obvious it is.
If we wait for proof convincing enough for everyone it will be too late to do anything about the problem without significant species extinction. Considering recent events, I don't how much more obvious it can get.