The Berkeley Earth Surface Temperature study has just released a summary of a recently completed global land warming analysis showing "reliable evidence of a rise in average world land temperature by approximately one degree Celsius since the mid-1950s." Yeah, we've heard that before, but this is one study that even skeptics may have to believe.
One way to combat global warming is for us to stop emitting greenhouse gases. Really, it's the best way. But if we can't make that happen, Plan B is to just zero out artificial global warming with artificial global cooling, and an ambitious test involving giant balloons spraying water is about to take place off the coast of Britain.
55 million years ago, a giant island burst out of the ocean off the northern coast of what is now Scotland. It existed quite happily for a million years or so, and then disappeared, only to be discovered again, now buried a mile beneath the ocean floor.