10 Natural Wonders To See Before They Disappear

As summer is approaching, and vacations are on our minds...it would be a shame to miss out on seeing some of these beautiful, wonderous places. I have never been to any of these, but my list is in hand, and I'm making plans....

You've heard the grim timelines: if warming continues, the Great Barrier Reef will be bleached by 2030; glaciers in the Swiss Alps, on Mt. Kilimanjaro, and in Glacier National Park will disappear in under 40 years; and Arctic ice melt will leave the North Pole bare and polar bears extinct.

(via 10 natural wonders to see before they disappear - CNN.com.)