And now this:
Some 3,000 scientific robots that are plying the ocean have sent home a puzzling message. These diving instruments suggest that the oceans have not warmed up at all over the past four or five years. That could mean global warming has taken a breather. Or it could mean scientists aren't quite understanding what their robots are telling them.Or, you know, it could mean that the ocean waters haven't heated up.
"There has been a very slight cooling, but not anything really significant," Willis says....Don't be alarmed. Global warming is still real.
So the buildup of heat on Earth may be on a brief hiatus. "Global warming doesn't mean every year will be warmer than the last. And it may be that we are in a period of less rapid warming."That's funny. To me, cooling doesn't = less rapid warming. There's a bit of a directionality issue involved in that statement.
It's also possible that some of the heat has gone even deeper into the ocean, he says. Or it's possible that scientists need to correct for some other feature of the planet they don't know about. It's an exciting time, though, with all this new data about global sea temperature, sea level and other features of climate.But don't worry -- the science is still settled. Right?
Trenberth and Willis agree that a few mild years have no effect on the long-term trend of global warming. But they say there are still things to learn about how our planet copes with the heat.