According to NASA, the first six months of 2016 have each individually been the hottest months respectively ever recorded (which started in 1880). Also, not surprisingly if you think about the math, the first six months of 2016 have been the warmest first half of the year ever recorded. This means that the sea ice in the arctic has shrunk to its smallest size ever recorded as well. This is good news for shipping companies, but not for polar bears and seals.
Now the question is what is causing it. There are some theories out there and we don't know 100% for sure what the cause is, but putting solar on your roof can't hurt right?