But the data is clear - global temperatures are rising, ocean temperatures are rising, oceans are acidifying because of CO2 absorption, glaciers are in retreat worldwide, plant life has been documented in expanding or contracting ranges into higher latitudes and altitudes worldwide, and all of this is going pretty much as predicted twenty or thirty years ago. The mechanism has been clarified over the last two decades - CO2 increases in the atmosphere because of fossil fuel burning.
The globe is getting warmer, and the main reason is humans and fossil fuel burning. Its not really a debatable scientific issue, no matter what the weatherman on the weather channel says.