CNN has the story Glacier National Park is replacing signs that predicted its glaciers would be gone by 2020 [cnn.com]
The signs at Glacier National Park warning that its signature glaciers would be gone by 2020 are being changed.
The signs in the Montana park were added more than a decade ago to reflect climate change forecasts at the time by the US Geological Survey, park spokeswoman Gina Kurzmen told CNN.
[...]
But the glacier warning isn't being removed entirely, she told CNN. Instead, the new signs will say: "When they will completely disappear depends on how and when we act. One thing is consistent: the glaciers in the park are shrinking.
Old sign [lidblog.com]
New sign [yaleclimateconnections.org]
According to famous philosopher of science Karl Popper [utm.edu], scientific theories require predictions that risk being wrong. This was one such prediction. Another that did not fare well [masslive.com] about Mt. Kilimanajaro reads [sciencemag.org]:
if current climatological conditions persist, the remaining ice fields are likely to disappear between 2015 and 2020
What concrete and risky predictions of climate science do you know that came true?