The more correct term is climate change as the warming is not uniform or consistent. The planet as a whole however is still unusually warm at the surface considering the sun's activity over the last 50 years or so. In fact the stratosphere (upper atmosphere) has been getting cooler in the last several decades so it's pretty hard to blame the sun for the recent warming near the surface. That's one fact that the global warming deniers are usually ignorant about.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL