30 Mar '15, 7pm

Arctic ice melt sets yet another record

We have to be careful here, because individual records can be misleading. The trend is what’s important. However, the trend is very, very clear: Ice extent at the North Pole is decreasing rapidly over time . Note that this record low extent is about 1 percent lower than the previous record … which was last year . Here’s a NASA video describing this year’s low maximum: The implications of losing Arctic ice are profound. First, high latitudes are more affected by warming; the temperature trends in the extreme north are twice what they are at lower latitudes . Melting ice does contribute to sea-level rise , though not as much as melting glaciers on land. The bad news: Those glaciers are melting faster than ever. This has a second effect that may prove just as disastrous, too. All that fresh water dumped into the salty ocean changes the way the water circulates around the worl...

Full article: http://grist.org/science/arctic-ice-melt-sets-yet-another...

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