Yellowstone WARNING: Scientists reveal Yellowstone at ‘TIPPING POINT’ in dire new study

“We need answers now to better anticipate future change.”

Another major problem revealed by Professor Hansen’s research is trees more adaptable to warmer and drier soil, like the Douglas fir, have failed to establish themselves in Yellowstone.

Up to 92 percent of the seeds tested at lower elevations of the park have failed to grow and those that did, died within the space of three years.

Professor Turner said: “It wasn’t just a small reduction, it was a failure to establish at the lower elevations.”

If the change in Yellowstone’s landscape continues unchecked, Professor Hansen warned Yellowstone “may be a very different place to live and visit over the next few decades”.